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  • List of Drill Bit and Tap Sizes - Drill Size Chart and Tap ...

    2020-3-28 · For a 1/8 npt tap requires an 'R' drill. Run your tap into the hole to the depth of the threads on the tap. Use a 1/8 fitting as a thread gauge to insure you have enough threads.

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  • What size drill bit do I use for a 1/8 NPT tap?

    2020-12-17 · 1-3/8-6 1-7/32 1.2188 1-3/8-12 1-19/64 1.2969 M36 X 4.00 32.00mm 1.2598 M36 X 3.00 33.00mm 1.2992 1-1/2-6 1-11/32 1.3438 1-1/2-12 1-27/64 1.4219 M39 X 4.00 35.00mm 1.3780 M39 X 3.00 36.00mm 1.4173 Drill sizes given are the ‘closest’ drill size. TAP DRILL SIZES - INCH & METRIC with DRILL SIZE FORMULAS (cont.) ENGINEERING DATA

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  • TAP DRILL SIZES - INCH & METRIC with DRILL SIZE

    1 1/8-12: 1.1250: 28.5750: 12: 2.117: 1 3/64 in: 1 1/8-7: 1.1250: 28.5750: 7: 3.629: 63/64 in: M30x1.5: 1.1811: 30.0000 ~17: 1.500: 28.5 mm: M30x3.5: 1.1811: 30.0000 ~8: 3.500: 26.5 mm: M30x2: 1.1811: 30.0000 ~13: 2.000: 28 mm: 1 1/4-12: 1.2500: 31.7500: 12: 2.117: 1 11/64 in: 1 1/4-7: 1.2500: 31.7500: 7: 3.629: 1 7/64 in: M33x2: 1.2992: 33.0000 ~13: 2.000: 31 mm: M33x3.5: 1.2992: 33.0000 ~8: 3.500: 29.5 mm: M36x3: 1.4173: 36.0000 ~9: 3.000: 33 mm: M36x4: 1…

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  • Tap Size Chart - Machining - CustomPart.Net

    1/2-13.4219: 27/64: 9/16-12.4844: 31/64: 5/8-11.5312: 17/32: 3/4-10.6562: 21/32: 7/8-9.7656: 49/64: 1″-8.8750: 7/8: Fine Thread: 0-80.0469: 3/64: 1-72.0595: No. 53: 2-64.0700: No. 50: 3-56.0820: No. 45: 4-48.0935: No. 42: 5-44.1040: No. 37: 6-40.1130: No. 33: 8-36.1360: No. 29: 10-32.1590: No. 21: 12-28.1820: No. 14: 1/4-28.2130: No. 3: 5/16-24.2720 ‘I’ 3/8-24.3320 ‘Q’ 7/16-20.3906: 25/64: 1…

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  • Tap and Drill Size Chart - American Fastener

    2019-9-3 · 3/8-32 11/32 .3438 * * .341/.349 .375 Tap Size Cut Tap Drill Roll Tap Drill Minor Ø Major Ø M1.6 x .35 1.25.0492 1.45.0571 1.221/1.321.0481/.0520 1.6.0630 M1.8 x .35 1.45.0571 #51 .0670 1.371/1.421.0540/.0559 1.8.0709 M2 x .4 1.6.0630 1.8.0709 1.567/1.679.0620/.0661 2.0.0787 M2.2 x .45 1.75.0689 2.0.0787 1.648/1.713.0649/.0674 2.2.0866

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  • Drill bit sizes, bit sizes for taps and comparative size ...

    2020-2-22 · The Q size drill bit is from the letter size drill series containing bits from A-Z. Q bit diameter = 0.3320' (8.433 mm). Closest fraction size drill bit is 21/64 = 0.3281' (8.334 mm).

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  • Tap Drill Chart - Fasteners Inc

    2017-5-25 · M10x1.25 0.3543 9.00 1-1/2 6 1.3386 34.00 3/8-24 0.3563 9.05 TAP DRILL SIZE CALCULATORS UNC/UNF CUT TAPS - Special Percentage of Thread Requirements Drill Size = Basic Major Diameter - 0.01299 x desired % of thread* threads per inch M/MF CUT TAPS - Special Percentage of Thread Requirements Drill Size (mm) = Basic Major Diameter - pitch x desired % of thread* 76.98

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  • What size of drill bit do I need for a 1/8 NPT tap?

    2017-6-28 · Tap Metric Drill Bit US Drill M1.6 x 0.35 1.25mm M1.8 x 0.35 1.45mm M2 x 0.4 1.60mm M2.2-0.45 1.75mm M2.5-0.45 2.05mm M3 x 0.5 2.5mm M3.5 x 0.6 2.90mm M4x 0.7 3.4mm M4.5 x 0.75 #26 M5 x 0.8 4.3mm M6 x 1.0 5.2mm M7 x 1.0 6.1mm 15/64 M8 x 1.25 6.9mm 17/64 M8 x 1.0 7.1mm M10 x 1.5 8.7mm M10 x 1.25 8.9mm 11/32 M10 x 1.0 9.1mm M12 x 1.75 10.5mm M12 x 1.5 10.7mm …

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  • Drill Bit Sizes For Tapping - A Complete Beginners Guide

    For a 1/8 npt tap requires an 'R' drill. Run your tap into the hole to the depth of the threads on the tap. Use a 1/8 fitting as a thread gauge to insure you have enough threads. Likewise, what size drill bit do I need for a 8 32 tap? To Tap This Size Screw Or Bolt: Use This Drill Bit: Decimal Inches. 4mm-0.75mm.

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  • List of Drill Bit and Tap Sizes – Drill Size Chart and Tap ...

    2021-7-5 · There is nothing more aggravating when you just don't know what size drill bit to use for a pilot. To help my readers out, I thought I would add this quick reference chart. This should help whenever you run into a situation you need to drill a pilot hole and are not sure the size bit. I also have included the chart for drill bit size per tap size.

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  • Drill bit sizes, bit sizes for taps and comparative size ...

    2007-8-29 · drill size decimal equivalent & tap drill chart decimal equivalent chart drill decimal size mm equivalent – 0.10 .0039 – 0.20 .0079 – 0.25 .0098 – 0.30 .0118 80 0.34 .0135

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  • What size hole do you drill for 1/8 NPT? -

    TAP-DRILL SIZE CALCULATOR; To minimize tapping problems and lengthen tool life, use the largest drill possible to produce a minor diameter that will result in the lowest percentage of full thread consistent with adequate strength. A minor diameter that provides a 55% to 65% thread is sufficient for most requirements, but in some cases a higher ...

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  • Screw To Drill Bit Size Chart and Tap and Drill Size

    2002-10-4 · The threads on my fuel pressure sensor (Greddy) are 1/8' NPT. The drill bit size for the tap I need is listed as 'R', I've never seen this before, nor have any idea where to get an 'R' drill bit. A 3/8' drill bit seems pretty close to what I'll need, but since I'm drilling …

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  • Tap Drill Sizes - Newman Tools

    2019-8-28 · For Metric sizes only. Diameter of thread minus the pitch equals the tap drill size. eg. M6 x 1 6 - 1 = 5mm and you thought metric was difficult ;-) Thanks to Jay Steinbuchel of Barksdale Control Products for the following: This works for all 75% threads, not just metric. For example, the tap drill for 3/8-16 is 5/16. The pitch is 1/16'.

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  • List of Drill Bit and Tap Sizes – Drill Size Chart and Tap ...

    2005-1-25 · Thread Size Tap-Drill Sizes Clearance Holes; Size DIA Close Fit Non-Struct (1/64 OS) 0-80-UNF 3/64.0469 No. 53 5/64; 1-64-UNC No. 53.0595 No. 49 No. 43; 1-72-UNF

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  • Tap and Drill Sizes Chart - East Tennessee State

    2020-10-30 · Drill Size Decimal eQUiValent tap Size 80 .0135 1 79 .0145 64 .0156 78 .0160 77 .0180 76 .0200 75 .0210 74 .0225 73 .0240 72 .0250 71 .0260 70 .0280 69 .0292

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  • Inch/MetrIc tap DrIll SIzeS & DecIMal equIvalentS

    2017-6-28 · Metric Tap and Drill Bit Size Table 8531 S. Freeway Drive • Macedonia, Ohio 44056 (800) 232 - 2659 • Fax: (330) 468–3302 www.scfastening.com. FASTENING . Created Date: …

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  • Metric Tap and Drill Bit Size Table - SC Fastening

    Drill America POU Series 1/2' NPT Tap and Drill Set, 1/2' Carbon Steel NPT Tap and 23/32' HSS Drill Bit w 1/2' Shank in Plastic Case 4.6 out of 5 stars 295 28.80 28 . 80

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  • Drill America POU Series 1/8' NPT Tap and Drill Set,

    2016-6-8 · Drill Size (mm) Closest American Drill Drill Size (mm) Closest American Drill. Drill Size (mm) Closest American Drill M1.5. 0.35 1.15. 56 1.25. 55 1.60. 1/16 1.65. 52 M1.6. 0.35 1.25. 55 1.35. 54 1.70. ... Drill & Tap Chart Created Date: 6/8/2016 11:48:30 AM ...

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  • Tap & Drill Chart - University of Florida

    2015-2-20 · British & ISO Pipe Thread tap drill size Popup chart BSPT (Taper) BSPP (Straight) ISO (Taper) ISO (straight) designation Pipe Size TPI Tap Drill Size Decimal inch Tap Drill Size Decimal inch Tap Drill Size mm Decimal inch Tap Drill Size mm Decimal inch; 1/16 - 28 : 28: 1/4: 0.2500: F: 0.2570: 6.3mm: 0.2480: 6.5mm: 0.256: 1/8 - 28: 6mm: 28: 21 ...

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  • British & ISO Pipe Thread (BSP) Tap Drill Size

    2002-10-4 · The threads on my fuel pressure sensor (Greddy) are 1/8' NPT. The drill bit size for the tap I need is listed as 'R', I've never seen this before, nor have any idea where to get an 'R' drill bit. A 3/8' drill bit seems pretty close to what I'll need, but since I'm drilling …

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  • Drill bit size 'R'??? | Supra Forums

    2016-4-30 · Taper Tap, 1/4-28, 3, 17/64 Mfr Part: 1323 whast does that say? sorry, I need to order the tap and the drill bit together. ETA: I did NOT order that tap. I ended up getting a cobalt steel tap from McMaster which worked easy.

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  • TAP & DRILL CHART - Imperial Supplies

    2021-2-23 · Decimal : Inches. Drill Size. Nearest . Fraction. To Tap For This Size . Bolt or Screw

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  • Sutton Tools Tapping Drill Size Chart - AIMS Industrial

    2019-10-25 · wwwsuttontoolscom Rc (BSPT)* ISO Rc TAPER SERIES 1:16 (55º) Tap Size TPI Drill Only* Drill & Reamer Rc 1/16 28 6.4 6.2 Rc 1/8 28 8.4 8.4 Rc 1/4 19 11.2 10.8

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  • Bolt Depot - US Tap and Drill Bit Size Table

    US Tap and Drill Bit Size Table. Print this page . Tap Fractional Drill Bit Number Drill Bit Letter Drill Bit #0-80: 3/64'--#1-64-53-#2-56-50-#3-48-47-#4-40: 3/32' 43-#5-40-38-#6-32: 7/64' 35-#8-32-29-#10-24:

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  • Tap Drill Chart – The Ultimate inch and metric table

    2016-11-26 · Thread Major Threads per Tap Drill Tap Tap Drill Theoretical % Size Diameter Inch (TPI) Range Drill Decimal of Thread J 0.2770 73.8% K 0.2810 65.5%

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  • A Complete Drill Tap Chart | Acme Tools

    Drill Size Chart. The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are measured in inches, while metric sizes are measured in millimeters.

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  • Tap Drill & Thread Height Chart

    To prevent dulling, use PlasDrill Bits only to drill plastic. When drilling plastics: Support the plastic on a rigid surface, e.g., scrap plastic or wood. Avoid drilling holes closer than 1/4' from the edge of the piece. Drill holes oversize to allow for expansion and contraction of plastic.

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  • Drill Size Chart - Machining - CustomPart.Net

    2021-7-5 · In this case, the most relative drill bit size corresponding to the 5/16″-18 tap is 17/64, which corresponds to an F drill bit. You can find the relative drill bit size with some simple math as well. For example, we found 17/64 as the closest bit in relation to the 5/16″-18 (DH=.2583) tap because, when divided, 17/64 is only a couple of ...

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  • TAP PlasDrill Bits : TAP Plastics - Cut to Size ...

    2020-12-5 · I'm just about ready to tap a 1/2-10 Acme thread in steel. I have a tandem tap ready. However, I'm not sure what size drill to use for the hole. I know the formula for minor diameter is Dmaj - Pitch = 0.500' - 0.100' = 0.400'. That's the basic size, but to make tapping easier, I'd like to go...

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  • 1 8 Npt Tap Drill Size Chart - Reviews Of Chart

    2020-2-8 · Bsp thread chart in mm poskin drill chart bit sizes decimal size chart for standard thre diameter ning for npt thread thread size chart grand br lNpt Thread Drill Size Chart PoskinNpt Pipe Tap Chart PoskinTap Chart Standard PoskinNpt Pipe Tap Chart PoskinBsp Thread Chart In Mm Poskin71 Bsp Thread Size ChartDrill And Tap Chart […]

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  • 1/8 NPT Drill and Tap Kit - glowshiftdirect.com

    2019-7-18 · Whether it's Windows, Mac, iOs or Android, you will be able to download the images using download button. For the 18 npt machinist chart shows letter r drill 339 decimal equivalent look at part or zerk to be threaded into the hole you want to tap. 1 8 grease fitting drill size. For over 50 years we have supplied a variety of grease zerk sizes ...

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  • 1 8 Grease Fitting Drill Size - FitnessRetro

    2016-11-26 · Thread Major Threads per Tap Drill Tap Tap Drill Theoretical % Size Diameter Inch (TPI) Range Drill Decimal of Thread J 0.2770 73.8% K 0.2810 65.5%

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  • Tap Drill & Thread Height Chart

    2021-7-5 · In this case, the most relative drill bit size corresponding to the 5/16″-18 tap is 17/64, which corresponds to an F drill bit. You can find the relative drill bit size with some simple math as well. For example, we found 17/64 as the closest bit in relation to the 5/16″-18 (DH=.2583) tap because, when divided, 17/64 is only a couple of ...

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  • What Size Drill Bit for a 5/16' Tap | SawsHub

    2021-4-22 · For thread engagements more than 1.5 diameters deep, 50% is usually sufficient. Most taps drill are sized to drill a slightly larger hole than what a 100% thread could be cut into, typically 75% or 50%. More commonly, holes that will create a 75% thread when tapped are used as a margin of safety, and this is what we sell.

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  • Tap Drill Sizes - Curious Inventor

    2020-11-15 · Below is a Metric drill and tap chart for 75% thread. You can find an SAE drill and tap chart here. You can also find an article on how to drill and tap a hole properly here. Tap Size (mm) Thread Pitch (mm) Drill Size (mm) Closest Drill size (in.) M1.5. 0.35.

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  • DRILL AND TAP CHART METRIC - ToolHustle

    2021-2-20 · Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm)

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  • Thread - Drill & Tap Chart

    Helical Insert Specs: Internal Thread Size: 5/8-11 UNC Length: 0.938' (1.5xD) Material: 18-8 (304) Stainless Steel Type: Free Running Tap Size: 5/8-11 STI Drill Size: 21/32' Quickly and easily repair stripped or damaged threads, or create stronger original threads in die castings or plastics with our Helical Screw Thread Inserts.

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  • 5/8-11 Complete Helical Thread Repair Kit - Includes ...

    Drill Size Chart. The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are measured in inches, while metric sizes are measured in millimeters.

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  • Tap Drill Sizes - Newman Tools

    2019-8-28 · For Metric sizes only. Diameter of thread minus the pitch equals the tap drill size. eg. M6 x 1 6 - 1 = 5mm and you thought metric was difficult ;-) Thanks to Jay Steinbuchel of Barksdale Control Products for the following: This works for all 75% threads, not just metric. For example, the tap drill for 3/8-16 is 5/16. The pitch is 1/16'.

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  • Metric Tap & Tap Drill Clearance Drill Clearance Drill Sizes

    2021-3-28 · Tap & Clearance Drill Sizes Tap Drill Clearance Drill Screw Size Major Diameter Plastics Threads Per Inch Minor Aluminum, Brass, Diameter 75% Thread for & 50% Thread for Steel, Stainless, & Iron Close Fit Free Fit Drill Size Dec. Eq. Drill Size Dec. Eq. Drill Size Dec. Eq. Drill Size Dec. Eq. 0 .0600 80 .0447 3/64 .0469 55 .0520 52 .0635 50 ...

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  • Metric Tap and Clearance Drill Sizes - Data Metal

    2018-3-24 · Drill Drill Size (mm) Closest American Drill Drill Size (mm) Closest American Drill Drill Size (mm) Closest American ... M3 1/8 3.303.15 30 Tap Drill Clearance Drill 75% Thread for Aluminum, Brass,& Plastics 50% Thread for Steel, Stainless,& Iron Close Fit Standard Fit M7 M6 M5 Screw Size …

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  • Tap and Drill Sizes Chart - East Tennessee State

    2005-1-25 · Thread Size Tap-Drill Sizes Clearance Holes; Size DIA Close Fit Non-Struct (1/64 OS) 0-80-UNF 3/64.0469 No. 53 5/64; 1-64-UNC No. 53.0595 No. 49 No. 43; 1-72-UNF

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  • Drill Tap & Hole Size - SoftNoze

    2019-12-17 · Metric Thread Size Tap Drill Pipe Thread Size Clearance Drill Tap Drill* M8 x 1 M22 x 1.5 1/2 x 14 NPT 7.08 (0.27') 20.5mm (.811') 23/32' 8.5mm (0.33') 22.5mm (.886') 3/4 x 14 NPT M12 x 1 M24 x 1.5 15/16' 11.0mm (0.43') 22.5mm (0.89') 12.5mm (0.49') 24.5mm (0.96') 1-1/4 x 11.5 NPT 1-1/2' M16 x 1 M30 x 1.5 ...

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  • Metric Tap and Drill Bit Size Table - Bolt Depot

    Tap Metric Drill US Drill; 3mm x 0.5: 2.5mm-4mm x 0.7: 3.4mm-5mm x 0.8: 4.3mm-6mm x 1.0: 5.2mm-7mm x 1.0: 6.1mm: 15/64' 8mm x 1.25: 6.9mm: 17/64' 8mm x 1.0: 7.1mm ...

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  • Tapping Drill HSS for BSP taps - tap-die.com

    2021-6-7 · Tapping Drills HSS for BSP taps 1/8x28 BSP taps use 8.8mm tapping drill, 1/4x19 BSP tap use 11.8mm tapping drill, 3/8x19 BSP tapuse 15.25mm tapping drill, 1/2x14 BSP tap use 19mm tapping drill, 5/8x14 BSP tap use 21mm tapping drill, 3/4x14 BSP taps use 24.5mm tapping drill, 7/8x14 BSP tap use 28.25mm tapping drill, 1x11 BSP tap use 30.75mm tapping drill, 1-1/4x11 BSP tap use 39.5mm …

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  • Tap and Drill Sizes - L-36.com

    Notes Thread Series National Coarse (NC) National Fine (NF) National Extra Fine (NEF) National Special (NS) 1 inch = 25.4 millimeters. Tap Drill Size (65-75% thread) = Nominal Diameter - One Pitch Length example: Tap Drill for #6-32 NC screw is #36, closest drill to 0.1067 inches (0.1067 = 0.1380 - 0.0313) Nominal Diameter of Number Screw (in.) = (Screw Number x 0.0130) + 0.0600

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  • DRILL AND TAP CHART SAE - ToolHustle

    2020-11-8 · DRILL AND TAP CHART SAE. Posted by. toolhustle November 8, 2020 How to guide. When drilling and tapping a hole you need to drill your workpiece to the right size and in order to tap your workpiece to the correct size. Below is an SAE drill and tap chart on both coarse thread and fine thread. You can find a metric drill and tap chart here.

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  • Taps and Drill Bit Kit - Thorlabs

    2021-4-12 · The DK3 Drill Bit Kit includes 60 drill bits of standard jobber length. The bits are constructed from high-speed steel and have a 135° point angle. This kit holds the bits in a compact, all-steel index case, with the bit sizes, tap sizes, tap drill sizes, and body drill (clearance) sizes embossed in the case.

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