Twist drill bits for stainless steel
These drill bits have the characters of high-temperature resistance, wear resistance, and the thick core to improve the bit rigidity, small amplitude in the drilling process, for drilling stainless steel, heat resistant steel(refractory steel), alloy, cast iron, and the difficult-to-cut metals of which hardness is between 32 to 38HRC.
The standard size can be available from stock.
Size list:
d(h8) | L | L1 | d(h8) | L | L1 |
1.5 | 70 | 45 | 8.1 | 165 | 109 |
1.6 | 76 | 50 | 8.2 | ||
1.7 | 8.3 | ||||
1.8 | 80 | 53 | 8.4 | ||
1.9 | 8.5 | ||||
2.0 | 85 | 56 | 8.6 | 175 | 115 |
2.1 | 8.7 | ||||
2.2 | 90 | 59 | 8.8 | ||
2.3 | 8.9 | ||||
2.4 | 95 | 62 | 9.0 | ||
2.5 | 9.1 | ||||
2.6 | 9.2 | ||||
2.7 | 100 | 66 | 9.3 | ||
2.8 | 9.4 | ||||
2.9 | 9.5 | ||||
3.0 | 9.6 | 184 | 121 | ||
3.1 | 106 | 69 | 9.7 | ||
3.2 | 9.8 | ||||
3.3 | 9.9 | ||||
3.4 | 112 | 73 | 10.0 | ||
3.5 | 10.1 | ||||
3.6 | 10.2 | ||||
3.7 | 10.3 | ||||
3.8 | 119 | 78 | 10.4 | ||
3.9 | 10.5 | ||||
4.0 | 10.6 | ||||
4.1 | 10.7 | 195 | 128 | ||
4.2 | 10.8 | ||||
4.3 | 126 | 82 | 10.9 | ||
4.4 | 11.0 | ||||
4.5 | 11.1 | ||||
4.6 | 11.2 | ||||
4.7 | 11.3 | ||||
4.8 | 132 | 87 | 11.4 | ||
4.9 | 11.5 | ||||
5.0 | 11.6 | ||||
5.1 | 11.7 | ||||
5.2 | 11.8 | ||||
5.3 | 11.9 | 205 | 134 | ||
5.4 | 139 | 91 | 12.0 | ||
5.5 | 12.1 | ||||
5.6 | 12.2 | ||||
5.7 | 12.3 | ||||
5.8 | 12.4 | ||||
5.9 | 12.5 | ||||
6.0 | 12.6 | ||||
6.1 | 148 | 97 | 12.7 | ||
6.2 | 12.8 | ||||
6.3 | 12.9 | ||||
6.4 | 13.0 | ||||
6.5 | 13.1 | ||||
6.6 | 13.2 | ||||
6.7 | 13.3 | 214 | 140 | ||
6.8 | 156 | 102 | 13.4 | ||
6.9 | 13.5 | ||||
7.0 | 13.6 | ||||
7.1 | 13.7 | ||||
7.2 | 13.8 | ||||
7.3 | 13.9 | ||||
7.4 | 14.0 | ||||
7.5 | |||||
7.6 | 165 | 109 | |||
7.7 | |||||
7.8 | |||||
7.9 | |||||
8.0 |