不带护锥的（A型）中心钻（GB/T6078.1-1998)(mm) |
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型号 d K12? |
型号 d K12? |
尺寸l基本尺寸 |
偏差l极限偏差 |
尺寸l1基本尺寸 |
偏差l1极限偏差 |
(0.50) |
3.15 |
31.5 |
±2 |
0.8 |
+0.2\0 |
(0.63) |
3.15 |
31.5 |
±2 |
0.9 |
+0.3\0 |
(0.80) |
3.15 |
31.5 |
±2 |
1.1 |
+0.4\0 |
1.00 |
3.15 |
31.5 |
±2 |
1.3 |
+0.6\0 |
(1.25) |
3.15 |
31.5 |
±2 |
1.6 |
+0.6\0 |
1.60 |
4 |
35.5 |
±2 |
2 |
+0.8\0 |
2.00 |
5 |
40 |
±2 |
2.5 |
+0.8\0 |
2.50 |
6.3 |
45 |
±2 |
3.1 |
+1.0\0 |
3.15 |
8 |
50 |
±2 |
3.9 |
+1.0\0 |
4.00 |
10 |
56 |
±3 |
5 |
+1.2\0 |
(5.00) |
12.5 |
63 |
±3 |
6.3 |
+1.2\0 |
6.30 |
16 |
71 |
±3 |
8 |
+1.2\0 |
(8.00) |
20 |
80 |
±3 |
10.1 |
+1.4\0 |
10.00 |
25 |
100 |
±3 |
12.8 |
+1.4\0 |