Specifications
1/2" shank hss twist drill bit*4241,4341,9341,6541,M32 and M42
*ISO 9001 standard
*plastic sleeve packing
*we are factory
1/2" shank hss twist drill bit
1.Material:4241,4341,9341,6541,M32 and M42
2.Fully ground,roll forged and edge forged twist drill
3.Special tip and more sharpness
4.Application:More than 5MM stainless steel, spring steel, special steel, hardness of HRC40 within the metal block, opened die punch ect.
hss twist drill
| Number | SIZE" | Number | SIZE" |
| 1 | 33/64" | 23 | 55/64" |
| 2 | 17/32" | 24 | 7/8" |
| 3 | 35/64" | 25 | 57/64" |
| 4 | 9/16" | 26 | 29/32" |
| 5 | 37/64" | 27 | 59/64" |
| 6 | 19/32" | 28 | 15/16" |
| 7 | 39/64" | 29 | 61/64" |
| 8 | 5/8" | 30 | 31/32" |
| 9 | 41/64" | 31 | 63/64" |
| 10 | 21/32" | 32 | 1" |
| 11 | 43/64" | 33 | 1-1/32" |
| 12 | 11/16" | 34 | 1-1/16" |
| 13 | 45/64" | 35 | 1-3/32" |
| 14 | 23/32" | 36 | 1-1/8" |
| 15 | 47/64" | 37 | 1-5/32" |
| 16 | 3/4" | 38 | 1-3/16" |
| 17 | 49/64" | 39 | 1-1/4" |
| 18 | 25/32" | 40 | 1-5/16" |
| 19 | 51/64" | 41 | 1-3/8" |
| 20 | 13/16" | 42 | 1-7/16" |
| 21 | 53/64" | 43 | 1-1/2" |
| 22 | 27/32" |
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