Size                Grit                      
1/4*24       36#  40#  60#  80#  120#        
3/8*13
1/2*18
1/2*24
3/4*18
3/4*20-1/2
1*30
1*42
1-1/2*60          
2*48
2*60
2*72
2*118
2*132
2*168
2-1/2*48
2-1/2*60
3*18
3*21
3*24
3*60
3*132
3-1/2*15-1/2
4*24
4*36
4*118
4*132
4*168
6*48
6*132
6*168
8*107
25*48
25*60
30*103
36*75
37*60
37*75
37*103
43*75
50*103
52*75
52*103
For a wide range of metalworking application.
Aggressive, rapid cut rate./resistant to heat
Longer life, cooler cut
Excellent durability