4 Tap Drilling Sizes
Metric Coarse Fluteless |
UNC Fluteless |
UNF Fluteless |
BSW Fluteless |
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Thread Size | Drill Dia. MM | Thread Size | Drill Dia. MM | Thread Size | Drill Dia. MM | Thread Size | Drill Dia. MM |
M1X0.25 | 0.89 | No1X64 | 1.67 | No0X80 | 1.38 | 1/16X60 | 1.4 |
M1.2X0.25 | 1.09 | 2X56 | 1.98 | 1X72 | 1.69 | 3/32X48 | 2.14 |
M1.4X0.3 | 1.26 | 3X48 | 2.27 | 2X64 | 2 | 1/8X40 | 2.89 |
M1.6X0.35 | 1.44 | 4X40 | 2.56 | 3X56 | 2.31 | 5/32X32 | 3.61 |
M1.8X0.35 | 1.64 | 5X40 | 2.89 | 4X48 | 2.6 | 3/16X24 | 4.29 |
M2X0.4 | 1.82 | 6X32 | 3.14 | 5X44 | 2.91 | 7/32X24 | 5.08 |
M2.2X0.45 | 2 | 8X32 | 3.8 | 6X40 | 3.22 | 1/4X20 | 5.78 |
M2.5X0.45 | 2.3 | 10X24 | 4.34 | 8X36 | 3.84 | 9/32X20 | 6.6 |
M3X0.5 | 2.77 | 12X24 | 5.01 | 10X32 | 4.47 | 5/16X18 | 7.3 |
M3.5X0.6 | 3.23 | 1/4X20 | 5.77 | 12X26 | 5.07 | 11/32X18 | 8.1 |
M4X0.7 | 3.68 | 5/16X18 | 7.3 | 1/4X28 | 5.94 | 3/8X16 | 8.8 |
M4.5X0.75 | 4.16 | 3/8X16 | 8.8 | 5/16X24 | 7.5 | 7/16X14 | 10.3 |
M5X0.8 | 4.64 | 7/16X14 | 10.3 | 3/8X24 | 9 | 1/2X12 | 11.8 |
M6X1.0 | 5.55 | 1/2X13 | 11.8 | 7/16X20 | 10.5 | 9/16X12 | 13.3 |
M7X1.0 | 6.5 | 9/16X12 | 13.3 | 1/2X20 | 12.1 | 5/8X11 | 14.8 |
M8X1.25 | 7.4 | 5/8X11 | 14.8 | 9/16X18 | 13.6 | 11/16X11 | 16.4 |
M9X1.25 | 8.4 | 3/4X10 | 17.9 | 5/8X18 | 15.2 | 3/4X10 | 17.9 |
M10X1.5 | 9.3 | 3/4X16 | 18.3 | ||||
M11X1.5 | 10.3 | ||||||
M12X1.75 | 11.2 | ||||||
M14X2.0 | 13.1 | ||||||
M16X2.0 | 15.1 | ||||||
M18X2.5 | 16.9 | ||||||
M20X2.5 | 18.9 |
BSF Fluteless |
G(BSP) Fluteless |
BA Fluteless |
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Thread Size | Drill Dia. MM | Thread Size | Drill Dia. MM | Thread Size | Drill Dia. MM |
3/16X32 | 4.41 | 1/8X28 | 9.3 | 0 | 5.58 |
7/32X28 | 5.15 | 1/4X19 | 12.6 | 1 | 4.92 |
1/4X26 | 5.91 | 3/8X19 | 16.1 | 2 | 4.36 |
9/32X26 | 6.7 | 1/2X14 | 20.1 | 3 | 3.79 |
5/16X22 | 7.4 | 5/8X11 | 22.1 | 4 | 3.32 |
11/32X22 | 8.2 | 3/4X14 | 25.6 | 5 | 2.95 |
3/8X20 | 9 | 7/8X14 | 29.4 | 6 | 2.58 |
7/16X18 | 10.5 | 1”X11 | 32.2 | 7 | 2.3 |
1/2X16 | 12 | 8 | 2.02 | ||
9/16X18 | 13.6 | 9 | 1.74 | ||
5/8X14 | 15.1 | 10 | 1.55 | ||
11/16X14 | 16.6 | ||||
3/4X12 | 18.1 |
MORE TAP DRILLING SIZES
CONTACT US
Mercury Tool and Gauge offer an extensive range of products that are manufactured to meet the most demanding quality needs in today's market.
If you would like to find out more about our services get in touch with Mercury Tool & Gauge today! Our dedicated customer service team are waiting for your call and will assist you with your requirements.
Tel: +44 (0)2476 694 030
Email: sales@mercury-gauge.com