中 心 鉆
CENTRE DRILLS
不帶護錐中心鉆 -A型 020 CENTRE DRILLS WITHOUT PROTECTIVE TAPER-TYPE A 020 | 帶護錐中心鉆 -B型 021 CENTRE DRILLS WITH PROTECTIVE TAPER-TYPE B 021 | |||||||
A 020 | B 021 | |||||||
1.0 | 3.15 | 31.5 | 1.3 | 1.0 | 4 | 2.12 | 36.5 | 1.3 |
1.25 | 3.15 | 31.5 | 1.6 | 1.25 | 5 | 2.65 | 40 | 1.6 |
1.6 | 4 | 35.5 | 2.0 | 1.6 | 6.3 | 3.35 | 45 | 2.0 |
2.0 | 5 | 40 | 2.5 | 2.0 | 8 | 4.25 | 50 | 2.5 |
2.5 | 6.3 | 45 | 3.1 | 2.5 | 10 | 5.3 | 56 | 3.1 |
3.15 | 8 | 50 | 3.9 | 3.15 | 11.2 | 6.7 | 60 | 3.9 |
4.0 | 10 | 56 | 5.0 | 4.0 | 14 | 8.5 | 67 | 5.0 |
5.0 | 12.5 | 63 | 6.3 | 5.0 | 18 | 10.6 | 75 | 6.3 |
6.3 | 16 | 71 | 8.0 | 6.3 | 20 | 13.2 | 80 | 8.0 |
8.0 | 20 | 80 | 10.1 | 8.0 | 25 | 17 | 100 | 10.1 |
10.0 | 25 | 100 | 12.8 | 10.0 | 31.5 | 21.2 | 125 | 12.8 |
1.0 | 3.15 | 31.5 | 1.3 | 1.0 | 4 | 2.12 | 36.5 | 1.3 |
