Made of tungsten vanadium steel with 3/32" shanks. Individual sizes packaged in boxes of 6. Made in Switzerland.
(Also available in a set of 12 popular sizes, see "Related Products" below.)
(Also available in a set of 12 popular sizes, see "Related Products" below.)
It happens to everyone, a drill bit breaks and the business end is stuck inside the hole in your precious metal jewelry. If you can't reach it, how will you get it out? Place the ring into common Pickling Solution. The drill bit will dissolve in about 15 minutes.
(Caution: do not put stones into Pickling Solution.)
| B&S Gauge |
Millimeter (mm) |
Inch (decimal) |
Inch (fraction) |
|---|---|---|---|
| 1 | 7.348 | 0.289 | — |
| 2 | 6.543 | 0.258 | — |
| — | 6.350 | 0.250 | 1/4 |
| — | 5.953 | 0.234 | 15/64 |
| 3 | 5.827 | 0.229 | — |
| — | 5.556 | 0.219 | 7/32 |
| 4 | 5.189 | 0.204 | — |
| — | 5.154 | 0.203 | 13/64 |
| — | 4.762 | 0.188 | 3/16 |
| 5 | 4.621 | 0.182 | — |
| — | 4.366 | 0.172 | 11/64 |
| 6 | 4.115 | 0.162 | — |
| — | 3.969 | 0.156 | 5/32 |
| 7 | 3.664 | 0.144 | — |
| — | 3.572 | 0.141 | 9/64 |
| 8 | 3.263 | 0.128 | — |
| — | 3.175 | 0.125 | 1/8 |
| 9 | 2.906 | 0.114 | — |
| — | 2.778 | 0.109 | 7/64 |
| 10 | 2.588 | 0.102 | — |
| — | 2.381 | 0.094 | 3/32 |
| 11 | 2.304 | 0.091 | — |
| 12 | 2.052 | 0.081 | — |
| — | 1.984 | 0.078 | 5/64 |
| 13 | 1.828 | 0.072 | — |
| 14 | 1.628 | 0.064 | — |
| — | 1.588 | 0.063 | 1/16 |
| 15 | 1.449 | 0.057 | — |
| 16 | 1.291 | 0.051 | — |
| — | 1.191 | 0.047 | 3/64 |
| 17 | 1.149 | 0.045 | — |
| 18 | 1.024 | 0.040 | — |
| 19 | 0.912 | 0.036 | — |
| 20 | 0.812 | 0.032 | — |
| — | 0.795 | 0.031 | 1/32 |
| 21 | 0.723 | 0.028 | — |
| 22 | 0.644 | 0.025 | — |
| 23 | 0.573 | 0.023 | — |
| 24 | 0.511 | 0.020 | — |
| 25 | 0.455 | 0.018 | — |
| 26 | 0.405 | 0.016 | — |
| — | 0.396 | 0.015 | 1/64 |
| 27 | 0.360 | 0.014 | — |
| 28 | 0.321 | 0.013 | — |
| 29 | 0.286 | 0.011 | — |
| 30 | 0.255 | 0.010 | — |
| 31 | 0.227 | 0.0089 | — |
| 32 | 0.202 | 0.0080 | — |
| 33 | 0.180 | 0.0071 | — |
| 34 | 0.160 | 0.0063 | — |
| 35 | 0.142 | 0.0056 | — |
| 36 | 0.127 | 0.0050 | — |
| 37 | 0.113 | 0.0045 | — |
| 38 | 0.101 | 0.0040 | — |
| 39 | 0.090 | 0.0035 | — |
| 40 | 0.080 | 0.0031 | — |
| B&S Gauge |
Millimeter (mm) |
Inch (decimal) |
Inch (fraction) |
| Diameter (mm) |
Diameter (inches) |
|---|---|
| 0.50 | 0.0197 |
| 0.60 | 0.0236 |
| 0.70 | 0.0276 |
| 0.80 | 0.0315 |
| 0.90 | 0.0354 |
| 1.00 | 0.0393 |
| 1.10 | 0.0433 |
| 1.20 | 0.0472 |
| 1.40 | 0.0551 |
| 1.50 | 0.0591 |
| 1.60 | 0.0630 |
| 1.70 | 0.0669 |
| 1.80 | 0.0709 |
| 1.90 | 0.0748 |
| 2.10 | 0.0827 |
| 2.30 | 0.0906 |
Custom Field
Diameter 0.70mm
Package Size Pkg. of 6
__AddtoCart Notes1 The Unit of Measure on this item changed on orders received as of 7 Feb 2022
__AddtoCart Notes3 Catalog Page # 254
__UOM Description Pkg. of 6
__uomdescrip Pkg. of 6
__techspec Y
