4 Tap Drilling Sizes
| Metric Coarse Fluteless |
UNC Fluteless |
UNF Fluteless |
BSW Fluteless |
||||
|---|---|---|---|---|---|---|---|
| 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 |
|||
|---|---|---|---|---|---|
| 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
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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.
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