Material Cobalt high speed steel, other categories Straight shank twist drill
Blade diameter Standard (mm) Blade length Standard (mm) Full length Standard (mm)
1.0 
1.2 
1.5 
1.8 
2.0 
2.2 
2.5 
2.8 
3.0 
3.2 
3.8 
4.0 
4.2 
4.8 
5.0 
5.2 
5.5 
5.8 
6.0 
6.5 
6.8 
7.0 
7.2 
7.5 
7.8 
8.0 
8.2 
8.5 
8.8 
9.0 
9.2 
9.5 
9.8 
10 
10.5 
11