Tap and Drill Chart | |||
| To Tap this Size Screw Or Bolt: | Use This Drill Bit: | (Closest Fractional:) | Decimal Inches |
| 0-80 NF | 3/64″ | 3/64″ | .0469 |
| 0-80 NF | 3/64″ | 3/64″ | .0469 |
| 1-64 NC | #53 | – | .0595 |
| 1-72 NF | #53 | 1/16″ | .0595 |
| 2-56 NC | #50 | – | .0700 |
| 2-64 NF | #50 | – | .0700 |
| 3-48 NC | #47 | 5/64″ | .0785 |
| 3-56 NF | #45 | – | .0820 |
| 4-36 NS | #44 | – | .0860 |
| 4-40 NC | #43 | 3/32″ | .0890 |
| 4-48 NF | #42 | 3/32″ | .0935 |
| 3mm- .060mm | 2.5mm | – | .0984 |
| 1/8-40 NS | #38 | – | .1015 |
| 5-40 NC | #38 | – | .1015 |
| 5-44 NF | #37 | – | .1040 |
| 6-32 NC | #35 | 7/64″ | .1100 |
| 6-36 NS | #34 | – | .1110 |
| 6-40 NF | #33 | – | .1130 |
| 6-48 NS | #31 | – | .1200 |
| 4mm-0.70mm | 3.4mm | – | .1338 |
| 4mm-.075mm | 3.4mm | – | .1338 |
| 8-32 NC | #29 | – | .1360 |
| 8-36 NF | #29 | 9/64″ | .1360 |
| 8-40 NS | #28 | – | .1405 |
| 3/16-24 NS | #26 | – | .1470 |
| 10-24 NC | #25 | 5/32″ | .1495 |
| 3/16-32 NS | #22 | – | .1570 |
| 10-32 NF | #21 | 5/32″ | .1590 |
| 5mm-.090mm | 4.2mm | – | .1653 |
| 5mm-.080mm | 4.3mm | – | .1693 |
| 12-24 NC | #16 | 11/64″ | .1770 |
| 12-28 NF | #14 | 3/16″ | .1820 |
| 12-32 NEF | #13 | – | .1850 |
| 14-20 NS | #10 | – | .1935 |
| 1//4-20 NC | #7 | 13/64″ | .2010 |
| 14-24 NS | #7 | – | .2010 |
| 6mm-1.00mm | 5.2mm | – | .2047 |
| 1/4-24 NS | #4 | – | .2090 |
| 1/4-28 NF | #3 | 7/32″ | .2130 |
| 1/4-32 NEF | 7/32″ | 7/32″ | .2188 |
| 1/4-40 NS | #1 | – | .2280 |
| 7mm-1.00mm | 6.1mm | 15/64″ | .2401 |
| 5/16-18 NC | Ltr.F | 17/64″ | .2570 |
| 8mm-1.25mm | 6.9mm | 17/64″ | .2716 |
| 5/16-24 NF | Ltr.I | – | .2720 |
| 8mm-1.00mm | 7.1mm | – | .2795 |
| 5/16-32 NEF | 9/32″ | 9/32″ | .2812 |
| 9mm-1.25mm | 7.9mm | – | .3110 |
| 3/8-16 NC | 5/16″ | 5/16″ | .3125 |
| 9mm-1.00mm | 8.1mm | – | .3189 |
| 9mm-0.75mm | 8.3mm | – | .3268 |
| 3/8-24 NF | Ltr.Q | 21/64″ | .3320 |
| 10mm- 1.50mm | 8.7mm | – | .3425 |
| 10mm- 1.25mm | 8.9mm | 11/32″ | .3503 |
| 10mm- 1.00mm* | 9.1mm | – | .3583 |
| 7/16- 14 NC | Ltr.U | 23/64″ | .3680 |
| 11mm 1.50mm | 9.7mm | – | .3818 |
| 7/16-20 NF | 25/64″ | 25/64″ | .3906 |
| 12mm- 1.75mm | 10.5mm | – | .4133 |
| 12mm- 1.50mm | 10.7mm | 27/64″ | .4212 |
| 1/2-13 NC | 27/64″ | 27/64″ | .4219 |
| 12mm- 1.25mm* | 10.9mm | 27/64″ | .4291 |
| 1/2-20 NF | 29/64″ | 29/64″ | .4531 |
| 1/2-24 NS | 29/64″ | 29/64″ | .4531 |
| 14mm-2.00mm | 12.2mm | – | .4803 |
| 9/16-12 NC | 31/64″ | 31/64″ | .4844 |
| 14mm- 1.50mm | 12.7mm | – | .4999 |
| 14mm-1.25mm* | 12.8mm | – | .5039 |
| 9/16-18 NF | 33/64″ | 33/64″ | .5156 |
| 5/8-11 NC | 17/32″ | 17/32″ | .5312 |
| 16mm-2.00mm | 14.2mm | 35/64″ | .5590 |
| 5/8-18 NF | 37/64″ | 37/64″ | .5781 |
| 16mm- 1.50mm | 14.7mm | – | .5787 |
| 11/16-11 NS | 19/32″ | 19/32″ | .5938 |
| 18mm-2.50mm | 15.8mm | 39/64″ | .5220 |
| 11/16-16 NS | 5/8″ | 5/8″ | .6250 |
| 3/4-10 NC | 21/32″ | 21/32″ | .6562 |
| 18mm-1.50mm* | 16.8mm | – | .6614 |
| 3/4-16 NF | 11/16″ | 11/16″ | .6875 |
| 20mm-2.50mm | 17.8mm | 11/16″ | .7008 |
| 7/8-9 NC | 49/64″ | 49/64″ | .7656 |
| 7/8-14 NF | 13/16″ | 13/16″ | .8125 |
| 22mm-1.50mm | 20.9mm | – | .8228 |
| 7/8-18 NS* | 53/64″ | 53/64″ | .8281 |
| 24mm-3.00mm | 21.4mm | 53/64″ | .8425 |
| 1.8 NC | 7/8″ | 7/8″ | .8750 |
| 24mm-2.00mm | 22.3mm | – | .8779 |
| 1.12 NF | 59/64″ | 59/64″ | .9219 |
| 1-14 NS | 15/16″ | 15/16″ | .9375 |
| 1 1/8-7 NC | 63/64″ | 63/64″ | .9844 |
| 1 1/8-12 NF | 1 3/64″ | 1 3/64″ | 1.0469 |
| 1 1/4-7 NC | 1 7/64″ | 1 7/64″ | 1.1094 |
| 1 1/4-12 NF | 1 11/64″ | 1 11/64″ | 1.1719 |
| 1 3/8-6 NC | 1 7/32″ | 1 7/32″ | 1.2188 |
| 1 3/8-12 NF | 1 19/64″ | 1 19/64″ | 1.2969 |
| 1 1/2-6 NC | 1 11/32″ | 1 11/32″ | 1.3438 |
| 1 1/2″-12 NF | 1 27/64″ | 1 27/64″ | 1.4219 |
| *These Sizes Are Spark Plug Taps |
Inch Tap and Die Set (45-Piece) Made of tungsten alloy high speed steel, Made of tungsten alloy high speed steel, the TEKTON Tap and Die Set (45-Piece) features 20 taps and 20 dies in a full range of coarse and fine sizes from 1/4 to 1 in. These tapered plug taps and dies are the most commonly used style and are perfect for most hand threading. 6.5 mm.2559 F.2570 5/16' - 18 NC Tap & Drill Selection Chart Dia./ Type Dec. Fractional Tap Pipe Tap Metric Tap Screw Ext. G.2610 17/64'.2656 8 mm - 1.25 H. Tap and Drill Bit Size Chart. The charts below show you what size drill bit to use with a tap. Tap sizes are shown as hole size – threads per inch. Example 1/4-20 = 1/4″ hole, 20 threads per inch. Drill sizes are for 75% depth of thread. Tap sizes are shown as hole size – threads per mm (millimeter). Example 6mm-1.0 = 6mm hole, 1 threads. M30 x 3.5 High Speed Steel 4-Flute Bottoming Hand Tap (1-Piece) Drill America Hand Taps. Hand Taps are the Drill America Hand Taps. Hand Taps are the most versatile taps for hand use, or for tapping under power. Hand threading tap is popular for use in general machine tapping or CNC tapping. TAP – DRILL RECOMMENDATIONS Tap Size Cutting Taps Forming Taps and Drill Decimal Drill Decimal. 1/4-28 3.2130 15/64.2340 5/16-18 F.2570 L.2900.
Tap and Drill Bit Size Chart
Tap and Drill Chart | |||
| To Tap this Size Screw Or Bolt: | Use This Drill Bit: | (Closest Fractional:) | Decimal Inches |
| 0-80 NF | 3/64″ | 3/64″ | .0469 |
| 0-80 NF | 3/64″ | 3/64″ | .0469 |
| 1-64 NC | #53 | – | .0595 |
| 1-72 NF | #53 | 1/16″ | .0595 |
| 2-56 NC | #50 | – | .0700 |
| 2-64 NF | #50 | – | .0700 |
| 3-48 NC | #47 | 5/64″ | .0785 |
| 3-56 NF | #45 | – | .0820 |
| 4-36 NS | #44 | – | .0860 |
| 4-40 NC | #43 | 3/32″ | .0890 |
| 4-48 NF | #42 | 3/32″ | .0935 |
| 3mm- .060mm | 2.5mm | – | .0984 |
| 1/8-40 NS | #38 | – | .1015 |
| 5-40 NC | #38 | – | .1015 |
| 5-44 NF | #37 | – | .1040 |
| 6-32 NC | #35 | 7/64″ | .1100 |
| 6-36 NS | #34 | – | .1110 |
| 6-40 NF | #33 | – | .1130 |
| 6-48 NS | #31 | – | .1200 |
| 4mm-0.70mm | 3.4mm | – | .1338 |
| 4mm-.075mm | 3.4mm | – | .1338 |
| 8-32 NC | #29 | – | .1360 |
| 8-36 NF | #29 | 9/64″ | .1360 |
| 8-40 NS | #28 | – | .1405 |
| 3/16-24 NS | #26 | – | .1470 |
| 10-24 NC | #25 | 5/32″ | .1495 |
| 3/16-32 NS | #22 | – | .1570 |
| 10-32 NF | #21 | 5/32″ | .1590 |
| 5mm-.090mm | 4.2mm | – | .1653 |
| 5mm-.080mm | 4.3mm | – | .1693 |
| 12-24 NC | #16 | 11/64″ | .1770 |
| 12-28 NF | #14 | 3/16″ | .1820 |
| 12-32 NEF | #13 | – | .1850 |
| 14-20 NS | #10 | – | .1935 |
| 1//4-20 NC | #7 | 13/64″ | .2010 |
| 14-24 NS | #7 | – | .2010 |
| 6mm-1.00mm | 5.2mm | – | .2047 |
| 1/4-24 NS | #4 | – | .2090 |
| 1/4-28 NF | #3 | 7/32″ | .2130 |
| 1/4-32 NEF | 7/32″ | 7/32″ | .2188 |
| 1/4-40 NS | #1 | – | .2280 |
| 7mm-1.00mm | 6.1mm | 15/64″ | .2401 |
| 5/16-18 NC | Ltr.F | 17/64″ | .2570 |
| 8mm-1.25mm | 6.9mm | 17/64″ | .2716 |
| 5/16-24 NF | Ltr.I | – | .2720 |
| 8mm-1.00mm | 7.1mm | – | .2795 |
| 5/16-32 NEF | 9/32″ | 9/32″ | .2812 |
| 9mm-1.25mm | 7.9mm | – | .3110 |
| 3/8-16 NC | 5/16″ | 5/16″ | .3125 |
| 9mm-1.00mm | 8.1mm | – | .3189 |
| 9mm-0.75mm | 8.3mm | – | .3268 |
| 3/8-24 NF | Ltr.Q | 21/64″ | .3320 |
| 10mm- 1.50mm | 8.7mm | – | .3425 |
| 10mm- 1.25mm | 8.9mm | 11/32″ | .3503 |
| 10mm- 1.00mm* | 9.1mm | – | .3583 |
| 7/16- 14 NC | Ltr.U | 23/64″ | .3680 |
| 11mm 1.50mm | 9.7mm | – | .3818 |
| 7/16-20 NF | 25/64″ | 25/64″ | .3906 |
| 12mm- 1.75mm | 10.5mm | – | .4133 |
| 12mm- 1.50mm | 10.7mm | 27/64″ | .4212 |
| 1/2-13 NC | 27/64″ | 27/64″ | .4219 |
| 12mm- 1.25mm* | 10.9mm | 27/64″ | .4291 |
| 1/2-20 NF | 29/64″ | 29/64″ | .4531 |
| 1/2-24 NS | 29/64″ | 29/64″ | .4531 |
| 14mm-2.00mm | 12.2mm | – | .4803 |
| 9/16-12 NC | 31/64″ | 31/64″ | .4844 |
| 14mm- 1.50mm | 12.7mm | – | .4999 |
| 14mm-1.25mm* | 12.8mm | – | .5039 |
| 9/16-18 NF | 33/64″ | 33/64″ | .5156 |
| 5/8-11 NC | 17/32″ | 17/32″ | .5312 |
| 16mm-2.00mm | 14.2mm | 35/64″ | .5590 |
| 5/8-18 NF | 37/64″ | 37/64″ | .5781 |
| 16mm- 1.50mm | 14.7mm | – | .5787 |
| 11/16-11 NS | 19/32″ | 19/32″ | .5938 |
| 18mm-2.50mm | 15.8mm | 39/64″ | .5220 |
| 11/16-16 NS | 5/8″ | 5/8″ | .6250 |
| 3/4-10 NC | 21/32″ | 21/32″ | .6562 |
| 18mm-1.50mm* | 16.8mm | – | .6614 |
| 3/4-16 NF | 11/16″ | 11/16″ | .6875 |
| 20mm-2.50mm | 17.8mm | 11/16″ | .7008 |
| 7/8-9 NC | 49/64″ | 49/64″ | .7656 |
| 7/8-14 NF | 13/16″ | 13/16″ | .8125 |
| 22mm-1.50mm | 20.9mm | – | .8228 |
| 7/8-18 NS* | 53/64″ | 53/64″ | .8281 |
| 24mm-3.00mm | 21.4mm | 53/64″ | .8425 |
| 1.8 NC | 7/8″ | 7/8″ | .8750 |
| 24mm-2.00mm | 22.3mm | – | .8779 |
| 1.12 NF | 59/64″ | 59/64″ | .9219 |
| 1-14 NS | 15/16″ | 15/16″ | .9375 |
| 1 1/8-7 NC | 63/64″ | 63/64″ | .9844 |
| 1 1/8-12 NF | 1 3/64″ | 1 3/64″ | 1.0469 |
| 1 1/4-7 NC | 1 7/64″ | 1 7/64″ | 1.1094 |
| 1 1/4-12 NF | 1 11/64″ | 1 11/64″ | 1.1719 |
| 1 3/8-6 NC | 1 7/32″ | 1 7/32″ | 1.2188 |
| 1 3/8-12 NF | 1 19/64″ | 1 19/64″ | 1.2969 |
| 1 1/2-6 NC | 1 11/32″ | 1 11/32″ | 1.3438 |
| 1 1/2″-12 NF | 1 27/64″ | 1 27/64″ | 1.4219 |
| *These Sizes Are Spark Plug Taps |
Inch Tap and Die Set (45-Piece) Made of tungsten alloy high speed steel, Made of tungsten alloy high speed steel, the TEKTON Tap and Die Set (45-Piece) features 20 taps and 20 dies in a full range of coarse and fine sizes from 1/4 to 1 in. These tapered plug taps and dies are the most commonly used style and are perfect for most hand threading. 6.5 mm.2559 F.2570 5/16' - 18 NC Tap & Drill Selection Chart Dia./ Type Dec. Fractional Tap Pipe Tap Metric Tap Screw Ext. G.2610 17/64'.2656 8 mm - 1.25 H. Tap and Drill Bit Size Chart. The charts below show you what size drill bit to use with a tap. Tap sizes are shown as hole size – threads per inch. Example 1/4-20 = 1/4″ hole, 20 threads per inch. Drill sizes are for 75% depth of thread. Tap sizes are shown as hole size – threads per mm (millimeter). Example 6mm-1.0 = 6mm hole, 1 threads. M30 x 3.5 High Speed Steel 4-Flute Bottoming Hand Tap (1-Piece) Drill America Hand Taps. Hand Taps are the Drill America Hand Taps. Hand Taps are the most versatile taps for hand use, or for tapping under power. Hand threading tap is popular for use in general machine tapping or CNC tapping. TAP – DRILL RECOMMENDATIONS Tap Size Cutting Taps Forming Taps and Drill Decimal Drill Decimal. 1/4-28 3.2130 15/64.2340 5/16-18 F.2570 L.2900.
Tap and Drill Bit Size Chart
The charts below show you what size drill bit to use with a tap.
Watermark tool online. Tap sizes are shown as hole size – threads per inch. Example 1/4-20 = 1/4″ hole, 20 threads per inch.
Imperial / SAE tap and drill bit size table
| 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 | 5/32 | 25 | – |
| 10-32 | 5/32 | 21 | – |
| 12-24 | 11/64 | 16 | – |
| 1/4-20 | 13/64 | 7 | – |
| 1/4-28 | 7/32 | 3 | – |
| 5/16-18 | 17/64 | – | F |
| 5/16-24 | – | – | I |
| 3/8-16 | 5/16 | – | – |
| 3/8-24 | 21/64 | – | Q |
| 7/16-14 | 23/64 | – | U |
| 7/16-20 | 25/64 | – | – |
| 1/2-13 | 27/64 | – | – |
| 1/2-20 | 29/64 | – | – |
| 9/16-12 | 31/64 | – | – |
| 9/16-18 | 33/64 | – | – |
| 5/8-11 | 17/32 | – | – |
| 5/8-18 | 37/64 | – | – |
| 3/4-10 | 21/32 | – | – |
| 3/4-16 | 11/16 | – | – |
| Drill sizes are for 75% depth of thread. |
Tap 1 5 File
Metric tap and drill bit size table
Glyphs 2 3. Tap sizes are shown as hole size – threads per mm (millimeter). Effect stack 1 0 2 – non destructive image editor. Example 6mm-1.0 = 6mm hole, 1 threads per mm.
Top 15 Flexes
| Tap | Metric Drill | Imperial Drill |
|---|---|---|
| 3 mm x 0.6 | 2.5 mm | – |
| 4 mm x 0.7 | 3.4 mm | – |
| 5 mm x 0.8 | 4.3 mm | – |
| 6 mm x 1.0 | 5.2 mm | – |
| 7 mm x 1.0 | 6.1 mm | 15/64 |
| 8 mm x 1.25 | 6.9 mm | 17/64 |
| 8 mm x 1.0 | 7.1 mm | – |
| 10 mm x 1.5 | 8.7 mm | – |
| 10 mm x 1.25 | 8.9 mm | 11/32 |
| 10 mm x 1.0 | 9.1 mm | – |
| 12 mm x 1.75 | 10.5 mm | – |
| 12 mm x 1.5 | 10.7 mm | 27/64 |
| 14 mm x 2.0 | 12.2 mm | – |
| 14 mm x 1.5 | 12.7 mm | – |
| 16 mm x 2.0 | 14.2 mm | 35/64 |
| 16 mm x 1.5 | 14.7 mm | – |
| Drill sizes are for 75% depth of thread. |
