For a rod (shaft) seal:O-Ring Max Groove Diameter = Min Shaft Diameter + (2 x Recommended Gland Depth) b. Products & Services. Markez® O-Rings FFKM. D. Dovetail grooving inserts are used to machine O-ring dovetail grooves with 66 ° undercut angles. For the production of smaller quantities, special compounds, and in case of. Proudly made in the USA by AB Tools, Inc. Track with dovetail groove, Dovetail connector for concealed installation, aluminium Title of Asset 4434331. Insuffi cient radius will potentially cause damage to the O-ring during installation, while excessive radius may contribute to. • Encourages the shielding perfor-mance illustrated in the Shielding Dovetail seal Also here there is a metal to metal contact as long as the con-struction will not deform under system pressure. 330” x 65 degrees. 1-30 143 All the information in this documentation has been compiled with the greatest of care. 200 info free groove volume at inst (%) radius (mm) Max. The design is optimized for strength by using an insert pair to generate the groove form. PTFE o’rings in radially loaded closed grooves are generally not recommended, however if this is unavoidable, PTFE o’rings can be heated to around 100°C to. D. Machine circular grooves onto the end of a workpiece. It was found that steeper angle between mortise-tenon contact areas. O-Ring Size Charts O-ring, x-ring and square. This is an excellent jig for routing the dovetail grooves on the MATCHFIT 360 Table. The correct O-ring groove dimensions and shape will ensure complete compression between the track and the mating surfaces. • No critical torque on tightening, therefore unlikely to cause structural damage. 300 in. The three parts of SAE J1453 cover material, dimensional, and performance requirements of steel O-ring face seal (ORFS) connectors for tubing and the O-ring face seal interface and nut portion of hose stem assemblies for nominal tube diameters of. 3/8" dovetail grooves work best with very small and light scopes, which more easily follow the gun back under recoil. 11. Going to go into the right side of the jig, inside out. 004" to 0. 055. Sight dovetail requirements: Front sight: . Five degree sloping sides are easier to machine and are suitable for lower pressures. (I used a 14°, 1/2″ wide bit, the standard for half-blind dovetail jigs. 1 7/8 ". When another piece of wood, carved in a complementary dovetail shape, fits into this slot, the resulting joint provides enhanced resistance. Unlike a line marked by even a sharp pencil, a line marked by a knife is exact. Design Chart 4-2 and its accompanying Design Table 4-2 (available by clicking on the chart image at the bottom of the page) give one set of dimensions for static O-ring seals when the configuration is similar to a piston or rod application with no motion involved. Ultra Quick-Shield offers excellent shielding at an affordable price. 3 Advantages of O-Rings • They seal over a wide range of pressure, temperature and tolerance. complete dovetail groove. As shown in above figure, an O-ring also gets compressed axially in a dovetail groove. 023 19 to 32. Metric o-ring groove dimensions are listed for the most common metric cross-sections with and without backup rings. and O. 000 for all sizes - . The 3/8" Dovetail is a measurement at the bottom (narrowest) part of the Dovetail. 11 17. 003. To calculate the required height of the ring mounts, half the 56mm objective bell diameter to give a measurement of 28mm. Use the same groove dimensions as the standard o-ring groove discussed previously. The dovetail is a unique design which allows the installation of mounts on various rifles. Once you find the exact metric o-ring you need, you can easily order online from the world's largest o-ring inventory network. » FilterSeals® Innovative FilterSeals® are custom designed as a combination elastomer and fabric device that operates as both a seal and a filter. Available in the most popular materials. 005-. A 1/6-slope tail should be measured out like this:This has grooves cut into the receiver, but a circular profile between them. RWP-038SS, Stainless Steel, . AlTiN coating option for added lubricity and increased wear resistance in difficult-to-machine materials. by Apollo » Sat Sep 16, 2017 12:12 am. axis of the barrel at the bottom of the slot, the widest fore and aft. For rotary O-rings: a compression ratio of 0-10%. The three main types of standard groove designs are Industrial Static also called Radial, Industrial Reciprocating also called Dynamic, and Face Seals also called Axial or. 070 0. For the slot you'll need a handheld router and the dado jig shown below. 015: 2: $68: $72:. Optimized for milling dovetail grooves into a part, Micro 100's solid carbide Dovetail Cutters are offered with 30°, 60°, and 90° included angles and in both uncoated and AlTiN coated styles. Weaver Multi Slot (Photo: Weaver Optics) It’s not uncommon to see a Weaver rail with only a few slots and lots of space between. Standard cutters matching the groove details are commercially available through tooling suppliers. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. They are custom molded to fit both round and complex groove paths with the potential to seal multiple ports with just one seal. (Grind to suit. e Minimum full thread depth. The "new" front dovetail is the same 11mm as for the rearsight, and is much shallower than the "old" dovetail. After selecting a material that fits your sealing application, you can continue by having the Size Selector calculate the O-ring dimensions and tolerances, considering even thermal expansion and volume swelling of the sealing element. Square groove dimensions The values and tolerances specified in the table apply to NBR Shore 70A O-rings. from the outside face of the 3⁄4-in. O-Ring Cross-Section. Regardless of the rifle type and dovetail width, this unique design is grooved onto the rifle's receiver, barrel or slide. 001" increments Inserts can groove, turn/bore and generate profiles. Shop Manual Z-Axis Stages - Dovetail Groove, Rack & Pinion, Long Stroke, ZLWG Series from MISUMI. Dovetail and Half-Dovetail Grooves; Boss Seals; Failure Modes;. Clamp the board down. While the outer appearance mirrors a simple miter joint, the interior hides the intricate dovetailing that offers superior strength. Step 1. Cut the 1/4" plywood bottom to size. The breakthrough dovetail clamps are design gives you the freedom to create your own tracks grooves using a dovetail router bit to clamp virtually anywhere. Gland width is to sharp edge of groove. They are used to cut the male and female parts of dovetail joints for industrial slides, as well as for cutting bevels and undercuts, and for deburring parts. installing the O-ring into the dovetail gland. 275 . Simply make a dovetail groove and get the clamping pressure you need where you need it. O-ring groove design is a key consideration in the o-ring selection process. Divide line 5 by 2 7. Like 15-30% based on service. 003. if it doesn't go in, file the sight. The cross-section of the O-ring is seen as moderately arbitrary, as there are a few distinct advantages to either a larger or smaller cross-section O-Ring. 005 +. The retention feature makes having an upside-down or vertical face seal groove much easi. This makes the drop-hole tools far stronger, permitting the tool to take heavy radial depths of cut and fewer step-overs. gnatshooter. These joints’ dimensions were based on studies run by (Horwood 1999; Haviarova et al. 7/8 ". 1mm - one dash BELOW horizontal bar. O-ring in the smallest possible groove (i. For a face seal: a compression ratio of 20-30%. Size the height of your box to fit your tallest whatsit you will store in it, and allow for a top and bottom. CNC, Swiss, Conventional and Round toolholders of various sizes and orientations available. Half Dovetail Groove Detail For dovetail grooves, match the centerline of the groove with the centerline of the O-ring. e. Our Carbide O-Ring Dovetail Cutters meet Parker Hannifin standards. Features: O-Ring Dovetail Groovers Solid micrograin carbide ; For turning 24° o-ring dovetails; All shanks have two lockdown flats so you can flip the tool and cut both sides of the groove with the same tool. Surface Studio vs iMac – Which Should You Pick? 5 Ways to Connect Wireless Headphones to TV. This is beneficial for special applications where the O-ring has to be fixed by the groove e. dimensions may be very difficult to assemble. To help you maximize o-ring performance, this dovetail o-ring groove design guide provides default recommendations to find the perfect o-ring dimensions. 5 x. 75” dovetail fixture with a maximum workpiece size of 7. 86 x 1. If the O-ring cannot resist increasingly high pressure, part of theAll high-traffic flat surfaces benefit from the use of tongue and groove joinery. An undercut or dovetail groove has. p. For example, if the gable of a chest of drawers is 3/4″ thick, machine the dovetail groove between 1/4″ and 3/8″ deep. / ea. 4) Using calipers, measure across the OUTSIDE of the pins 5) Note the constant corresponding to the MALE DOVETAIL ANGLE from the following list: 45°/. 139. This self-aligning feature makes the joint particularly effective for creating wide panels. ) 10˚ Stroke Shaft Diameter (SD) Shaft Diameter (SD) Flats are tangent to GD NOTE: All dimensions and tolerances are in millimetersMANU TRUCTION iii AMERICAN WOOD COUNCIL FOREWORD This Manual for Engineered Wood Construction (Manual) provides guidance for design of most wood- based structural products used in the construction of wood buildings. , at the hardware and O-ring tolerance stack-up) and the smallest possible O-ring in the largest possible groove. Because of the difficulty in creating the groove and tight tolerances required, this type of seal application should only be used when necessary. Narrower groove for sealing vacuum or gas. Drill/Mill. A half-blind dovetail joint showcases interlocking fingers visible from the side but concealed on the front face. Rear sight: . 013 to. 0. TO PLACE ORDERS OR QUOTATIONS O-Ring Cross Section Gland Depth Squeeze Diametrical Clearance Max. 070”, . 101. Parker Hannifin O-Ring & Engineered Seals 2360 Palumbo Drive Lexington, KY 40509 Ph: 859-269-2351 Fax: 859-335-5128 oesmailbox@parker. However, designers must be careful in selecting the dovetail groove dimensions as a large inclination angle can limit the space inside the groove for the O-ring to expand into. Learn about the factors that affect vacuum sealing performance, such as o-ring size, material, groove geometry, surface finish, and lubrication. Groove widths . 5” (1. e. Finally I realized just fit the scope ring, finger tight onto the rail, slide it off and measure the dovetail width on the scope ring! Measuring the RWS dovetails were 9. Harvey Tool's fully stocked selection of O-Ring Slotting End Mills are optimized for machining O-Ring grooves, and feature a stub flute length for improved strength. Use this tool for analyzing your current gland and o-ring combination. or . male gland A B-1 C G Groove Dia. 5 mm). and in cross sections from . Popular Sealing Material Families. 40 0. 000 +. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during during assembly and maintenance of equipment. 7 mm across the top which means that it is wider than the 11 mm dovetail. 005″ on the bottom for the dovetail cutter to clean up. 139 inch (3,53 mm) and bigger. In milling the groove, a regular o-ring groove using the dimensions of “W” and “L” must be made first, then finished up with a dovetail cutter. 3. Compare O-Ring Sizes USA AS568 Parker O-Ring Size Chart, X-Ring Square Ring Size Charts. Lay Out Tails. He would probably know, the Angle and Slot size on, the barrels. Sutibable allowances should be mde for higher swell compounds •For max. Try to keep the depth of the dovetail groove between 1/3 and 1/2 the thickness of the part. Bottom Rad. . 053 to. 014″. Noted for its resistance to being pulled apart, also known as tensile strength, the dovetail joint is commonly used to join the sides of a drawer to. Clamp that down, take the back piece, inside up, clamp that down. 53 - O-Ring Dovetail Groovers. Groove Width: R1: R2: Cross Section (mm) Groove Depth E+/-0,05: F2 +/-0,05 (width to round. 000 +. For Use with Dovetail and 5/32 Inch Indicators. 41. The front ring is lower than the rear ring. The rest of the world relies on Parker Metric Kit #1, which contains 32 of the most common metric o-ring sizes forRe: Size of dovetail in CZ 452. 0569 ; 60°/. Browse from 17 included angles in both uncoated and AlTiN coated styles. 005 +. MSRP. Static Male and Female O-ring Seal Design . This can be easily achieved by taking a fly-cut on the surface prior to milling the groove. O-RING GLAND TYPES AND NOMENCLATURE Most static O-ring seals can be classified into one of the three arrangements shown below. Free groove volume. Metric o-ring groove dimensions are listed for the most common metric cross sections with and without backup rings. com. 70 - Double End Split Blanks. A variation of the standard sliding dovetail is the tapered sliding dovetail. Also called a “tip off” mount, the dovetail rail allows the shooter to easily remove and replace mounted optics. There were 20 samples of 360 L × 50 W × 24 H mm; dovetail, tongue and groove, halving, and dowel joints for each test. Undercutting. a Pitch diameter. Cross Sectional Dimensions AS568A Series O-Ring Cross Section Gland Width Squeeze Gland Depth Gland Corner Radii Actual Tol +/- (G) % (L) (R) (R1) -004 To -050 0. Anschutz changed their foresight mount in 1987, when the 1900 smallbore rifles replaced the 1800. * Please note that some AS568-0XX O-rings have atypical cross. Thick. This is done by measuring the old sight, the sight cut and the new sight and making a plan to remove. 023 19. From this data, B-Square compiled a list of scope groove dimensions for many models of air rifles. EricHill, I regularly use half dovetail o-ring grooves. Novak's will fit but it is recommended purchase of Novak for Kimber (because they are nearly but not precisely the same). 73 - Face Grooving Tools - Full Radius. Larue Tactical Optic Mount Scope Rings 30mm, 34mm,35mm & 1 Inch. 961 0. . Putting the angled face to the outside renders it useless for retaining the o-ring because the o-rings is pulled towards the. e. to 500” I. Once you find the right o-ring groove design you can easily order online from the world's largest. 3/8″ shank diameter; Additional Info : Item Dimensions: Weight: 0. (***) Similar to O-rings, the Quad-Rings®/X-Rings need a squeeze of 10 to 15%. Thus 9. Mills Both Top and Bottom Radii. Face Grooving Lathe Tools. This recommended practice provides the design criteria for static elastomeric O-ring seals used specifically in engine and engine control systems. $1,999. The composite GD&T frame I suggested above allows you to control the stuff that is really critical, and open up everything else. Table 3. Then, calculate the O-Ring groove diameter as follows: a. Insuffi cient radius will potentially cause damage to the O-ring during installation, while excessive radius may contribute to extrusion. They also have different groove angles as shown below. 5. The 11 mm dovetail has a 60-degree angle, while the 3/8” dovetail has a 45-degree angle. 450" or so. Flash for standard sizes is 0. 1700 136th Pl N. 011 0. 05 6 M4 x 10 SHCS 4 R Location of plate groove determined by mold design 60˚ grinding center provided on both ends. x = D ( 1 + cot 1/2 α ) + a. If the O-ring size required is known, simply select the AS, BS or ISO standard (such as AS568) and enter the dash size reference. O-Ring Face Seal Glands These dimensions are intended primarily for face type O-ring seals and low temperature applications. So, the nominal size is in fact based on the gland size and not the O-ring size. Softwoods are traditionally 1:6 and hardwoods 1:8. Manufactured by Kaiser Tool Company, Thinbit’s Groove ’N Turn toolholders are available in square sizes of ¾" and 1" and are used for making undercuts and thread reliefs at 45-degree angles. The Katz-Moses Magnetic Dovetail Jig* ( 1:6 or 1:8 models): This simple tool dramatically cuts down the learning curve of dovetails to instantly increase your accuracy — and yes, they still count as hand cut. Diamond Seals. The spiral is wound out of low cost spring temper stainless steel for excellent spring memory and compression set resistance. O-Ring Gland Fill %O-Ring Volume) / (Gland Volume) Gland volume vs. D. A dovetail joint or simply dovetail is a joinery technique most commonly used in woodworking joinery (carpentry), including furniture, cabinets, [1] log buildings, and traditional timber framing. . Product Dimensions 11. , at the hardware and O-ring tolerance stack-up) and the smallest possible O-ring in the largest possible groove. Simply route a groove anywhere you need using a 1/2”–14º dovetail router bit. For Depths of Cut 2-1/2 to 3 times groove width. 11mm calculates to . btrueblood (Mechanical) 13 Jun 11 13:35. Specifications Dimensions Assembled Depth (in inches) 2. Dovetail Cutters. The most important variable for installing an O-ring into a dovetail gland is making sure the seal is sized properly. 010-. supplier recommendation. Package Dimensions : 11. Design Charts II & III (see pp 7-8) provide dimensional recommendations for full and half-dovetail vacuum seal O-ring grooves. Whether you are a first-time dovetailer or an experienced woodworker who doesn’t cut dovetails often, these little tools come in. However, installing an O-ring into these grooves can be tricky without proper technique. 010-. Extractor & Firing Pin and a New, Green Mountain 20" barrel, on my Ruger 10-22. Stand your piece up vertically on your work surface. I do have one of the factory plastic adjustable rear sights and it appears to have close to the above specs. The 11 mm dovetail has a 60-degree angle, while the 3/8” dovetail has a 45-degree angle. Use very small (1/16”) dots of glue every 3-4” along the groove. View basic o-ring design guides for grooves, glands, depth, width, clearance, stretch, squeeze and more from Marco Rubber O-Ring specialists and buy onlineThe O-Ring Handbook has suggested groove dimensions for standard O-ring sizes. Kalrez® O-Rings FFKM. When machining this groove, a standard o-ring groove must be machined first. EPDM O-Rings. Caption of Asset 4434331, MAM Studio Assets - Accepted. 2. 5mm - horizontal bar. Asking a dovetail cutter to plow through a hard slide cutting on a full 180-degree path is begging for an overheated and worn (or broken) cutter, a work-hardened slide and poor cut finish. ( 3/8" has a 45 degree mill cut versus the 11mm with a smaller top and 60 degree angle mill cut. Part # Cutting Dia. The dovetail grooving inserts are intended to machine O-ring dovetail grooves with 66-degree undercut angles. Groove info material Coefficient of thermal expansion (1. See the Dovetail Groove Cutter data sheet for more information (page 36). 053 to. Create your own clamp tracks anywhere you can route. Use face grooving tools with precision coolant supply even if the maximum coolant pressure in your machine is low (7‒10 bar (102‒145 psi)). 5 degrees is 1/6, and 7. e. c Sharp edge or burr not allowed; break corner 0,15 max. The extra void space in the design allows the O-ring to swell slightly due to thermal expansion or. dated by a dovetail groove. This paper covers the development and testing conducted to adopt the dovetail groove in the SAE standard. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low. Boss seal The groove dimensions are incorporated in the standard dimen-sions. KAISER TOOL COMPANY, INC. The groove design allows the O-ring to be retained in the axial/face seal during assembly and maintenance. 070 ±. These dimensions were determined in consideration of ease of processing when fabricating dovetail structures by. The second toolpath is designed for a 73° dovetail router bit. of sizes from 5” I. g Groove style A – Groove providing. and in cross sections from . The charts below gives the dimensions for Standard and Dovetail O-Ring grooves. It can help achieve more convenient and flexible installation methods compared to the original dovetail plate of ASIAIR PRO. Whether you need bolted flanges or removable lids, this o-ring face seal groove design guide will help you choose the right o-ring for your application. By simply entering installation specifications for an application, it recommends O-Ring sizes, housing layout and. Step Down: 4mm per pass (3 passes) Feed Rate: 45mm/sec. Browse design considerations and recommendations for static face seals, metric o-rings, static dovetail o-rings, static rod-piston o-rings and dynamic rod-piston o-rings. 362. 5mm), you can use this lightweight aluminum adapter to attach your Weaver and Picatinny rings or mount to your smaller 11mm and 3/8" dovetails. For exact details, refer to manufacturer catalogs . Dynamic Seal TypesThen in 1947 Mossberg grooved the receiver of the Model 142, and in 1949 all Mossberg rifles were made with grooves on top for the Mossberg 4M4 scope. 002 for sizes 2-006 through 2-324 - . O-Ring volume. Higbee Division: Syracuse, NY. 345" wide or 65 degrees. 122 0. Before you can install the sight in a sight cut & dovetail, you generally have to fit the sight to the sight cut & dovetail. ) Leupold 1" Rings Ruger 77. Harvey Tool's fully stocked, ready to ship offering of Dovetail Cutters take into account a variety of included angles, lengths of cut, and corner radii, allowing you to choose the exact dimensions needed for your difficult dovetail groove cuts. Includes (6) 1" track screws. 43 - I. 10 0. 7 mm across the top which means that it is wider than the 11 mm dovetail. Point Length Overall. , seal squeeze and groove volume to accommodate O-ring swell. Dovetail O-ring groove. For a bore (piston) seal:O-Ring Min Groove Diameter. Cross Sectional Dimensions AS568A Series O-Ring Cross Section Gland Width Squeeze Gland Depth Gland Corner Radii Actual Tol +/- (G) % (L) (R) (R1) -004 To -050 0. The Relief Bit reduces stress on your Dovetail Router Bit by removing 55% of waste material. While effective at retaining a seal, this method requires more assembly care and effort to preventA through dovetail joint displays interlocking pins and tails that extend through the full thickness of the adjoining pieces, visible from both sides. 5mm) dovetail, "tip off" rail 3/8" dovetail rails, sometimes call tip off rails, consist of two thin parallel grooves and are used almost exclusively on rimfire rifles and air rifles. (On our ring height charts, the height is for the front ring. 5 inches : Thread Size #10-32 : Metal Type. Press-In-Place Seals. Make every inch of your workshop more functional. RRS Quick Release System. Once you find the right o-ring groove design you can easily order online from the world's largest. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. High Efficiency: The dovetail cutter has high grinding accuracy, it is mainly used for machining dovetail groove cutter. 054. And with just a few simple tips, you’ll be routing perfect joints in no time. Insuffi cient radius will potentially cause damage to the O-ring during installation, while excessive radius may contribute to extrusion. 00. What size are standard dovetails? Dovetails come in several different types and sizes depending on manufacturer, but the most common are the 11 mm and 3⁄8 inch (9. The high component value and complexity make process security essential. The table below shows the recommended O-ring groove dimensions for different sizes as per. Learn more about Metric O-Ring Groove Design. 8-8. Vixen developed the dovetail plate for mounting a telescope to a mount. 13 BS1806-109 0. A dovetail joint or simply dovetail is a joinery technique most commonly used in woodworking joinery (carpentry), including furniture, cabinets, [1] log buildings, and traditional timber framing. If you are looking for a comprehensive guide on O-Ring design, selection, and application, you should download the Parker O-Ring Handbook (ORD 5700) pdf. Hold the piece in your dominant hand and use your opposite hand to pin it firmly against the table's fence. Contact Us For Assistance Or Samples Click Here and contact us today to receive a quote or if you have any questions regarding sizing. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Alcoholic Beverage; Aerospace;. D. Trelleborg Sealing Solutions has produced a new brochure for AS568 Standard O-Rings in NBR 70, NBR 90, FKM 75 and FKM 90 materials, many of which are in stock and available for quick delivery. Gland width is to sharp edge of groove. Other method of dimension. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. 376 through . It wouldn't make any difference complexity wise whether you were cutting a single or double dovetail groove. 5 mm, 16. Sizes and angles of sights can drive you nuts, because sight manufacturers don't like to give the actual dimensions of the sights they sell. #3. While Dove Tail O-ring grooves are effective at keeping an O-ring in place, they are expensive to manufacture and should only be used if absolutely necessary. Groove Dimensions. Below are our sight offerings for 1911 pistols with Novak® LoMount dovetail cuts: Please confirm slide dovetail cuts and dimensions with your firearm’s manufacturer, or a local gunsmith prior to purchase (below are the Novak® LoMount dimensions). However, that is not the only difference between the two dovetails. 000-. Try to keep the depth of the dovetail groove between 1/3 and 1/2 the thickness of the part. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent. A dovetail that will "hold" the O-ring at room temp. Route dovetail grooves on a jig or work surface ; Use Dovetail Hardware to make stops and hold-downs that move freely, and tighten down anywhere you can route a groove. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. Divide line 6 by line 9 11. A wider dovetail offers more support. 433" so I would assume that you could follow the directions for the 3/8" dovetail but make the distance between the grooves about . point of the dovetail. 1a Mounting with rail (dovetail connector rail) Mill groove into for track into front edge of shelf, 10. This marks the lap and determines the length of the tails. 070. Some other. 005 GrooveRadial Radius Eccen- tricity Max. This paper covers the development and testing conducted to adopt the dovetail groove in the SAE standard. Excentricity info inner diameter stretch at inst (%)Start with the tails. 090”, . there are three or four measurements that define the dimensions of a. Use very small (1/16”) dots of glue every 3-4” along the groove. For standard O-ring grooves in the face and radial applications, we recommend 60-90% gland fill. In Stock. In the Grooves dialog box: To create an O-ring groove, click the O-Ring Grooves tab. Because they can be expensive to machine, O-ring grooves should only be added when. to 500” I. A new dovetail groove, which positively retains the O-ring, has been designed and incorporated into the SAE J1453 standard. O-Seals. 3" high, and 60 degrees, but it could be . GROOVE 'N TURN dovetail inserts fit existing "L" series THINBIT toolholders.