DRIVER
SIZE
L/MM
D1/MM
D2/MM
REMARK
1/4"DR
0
25
15.3
15.3
23g
1/4"DR
1
25
14
14
20g
1/4"DR
2
25
12
12
13g
1/4"DR
3
25
10.2
12
12g
1/4"DR
4
25
9.7
12
11g
1/4"DR
5
25
8.8
9.2
10g
1/4"DR
6
25
8.1
12
9g
1/4"DR
7
25
7.2
12
9g
1/4"DR
8
25
6.2
12
9g
3/8"DR
0
30
15.3
17
35g
3/8"DR
1
30
14
17
32g
3/8"DR
2
30
12
17
30g
3/8"DR
3
30
10.2
17
28g
3/8"DR
4
30
9.7
17
25g
3/8"DR
5
30
8.8
17
24g
3/8"DR
6
30
8.1
17
23g
3/8"DR
7
30
7.2
17
22g
3/8"DR
8
30
6.5
17
20g