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Name | HSS Twist Drill Bit |
Production Technics | Fully Ground(or custom) |
Surface Finishing | Black & Gold Finishing(or custom) |
Meterial | M2(or custom) |
Hardness | 63°~65°(change with material and production process) |
Usage | Metal 、Wood、Copper、Iron、Etc. |
Tip | Split Point 135 Degree(or custom) |

DIN338 | DIN340 | DIN1897 | ||||||||||||||
Dia. (mm) | Inch | Flute Length (mm) | Overall Length (mm) | Dia. (mm) | Flute Length (mm) | Overall Length (mm) | Dia. (mm) | Flute Length (mm) | Overall Length (mm) | |||||||
0.2 | 2.5 | 19 | 1 | 33 | 56 | 1 | 6 | 26 | ||||||||
0.22 | 2.5 | 19 | 1.1 | 37 | 60 | 1.1 | 7 | 28 | ||||||||
0.25 | 3 | 19 | 1.2 | 41 | 65 | 1.2 | 8 | 30 | ||||||||
0.28 | 3 | 19 | 1.3 | 41 | 65 | 1.3 | 8 | 30 | ||||||||
0.3 | 3 | 19 | 1.4 | 45 | 70 | 1.4 | 9 | 32 | ||||||||
0.32 | 4 | 19 | 1.5 | 45 | 70 | 1.5 | 9 | 32 | ||||||||
0.35 | 4 | 19 | 1.6 | 50 | 76 | 1.6 | 10 | 34 | ||||||||
0.38 | 4 | 19 | 1.7 | 50 | 76 | 1.7 | 10 | 34 | ||||||||
0.397 | 1/64 | 5 | 20 | 1.8 | 53 | 80 | 1.8 | 11 | 36 | |||||||
0.4 | 5 | 20 | 1.9 | 53 | 80 | 1.9 | 11 | 36 | ||||||||
0.42 | 5 | 20 | 2 | 56 | 85 | 2 | 12 | 38 | ||||||||
0.45 | 5 | 20 | 2.1 | 56 | 85 | 2.1 | 12 | 38 | ||||||||
0.48 | 5 | 20 | 2.2 | 56 | 90 | 2.2 | 13 | 40 | ||||||||
0.5 | 6 | 22 | 2.3 | 56 | 90 | 2.3 | 13 | 40 | ||||||||
0.52 | 6 | 22 | 2.4 | 62 | 95 | 2.4 | 14 | 43 | ||||||||
0.55 | 7 | 24 | 2.5 | 62 | 95 | 2.5 | 14 | 43 | ||||||||
0.58 | 7 | 24 | 2.6 | 62 | 95 | 2.6 | 14 | 43 | ||||||||
0.6 | 7 | 24 | 2.7 | 66 | 100 | 2.7 | 16 | 46 | ||||||||
0.62 | 8 | 26 | 2.8 | 66 | 100 | 2.8 | 16 | 46 | ||||||||
0.65 | 8 | 26 | 2.9 | 66 | 100 | 2.9 | 16 | 46 | ||||||||
0.68 | 9 | 28 | 3 | 63 | 100 | 3 | 16 | 46 | ||||||||
0.7 | 9 | 28 | 3.1 | 69 | 106 | 3.1 | 18 | 49 | ||||||||
0.72 | 9 | 28 | 3.2 | 69 | 106 | 3.2 | 18 | 49 | ||||||||
0.75 | 9 | 28 | 3.3 | 69 | 106 | 3.3 | 18 | 49 | ||||||||
0.78 | 10 | 30 | 3.4 | 73 | 110 | 3.4 | 20 | 52 | ||||||||
…… | …… | …… | …… | …… | …… | …… | …… | …… | …… | |||||||





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