Description:
(1) High hardness and wear resistance
(2) Good heat resistance
(3) High strength and good toughness
New Bit No. |
Old Bit No. |
D/mm |
H/mm |
R/mm |
L/mm |
d/mm |
B/mm |
520 285 032 |
520 285 |
28.5 |
12.7 |
3.2 |
54 |
6 |
12.7 |
521 285 032 |
521 285 |
28.5 |
12.7 |
3.2 |
54 |
8 |
12.7 |
520 318 048 |
------ |
31.8 |
15.9 |
4.8 |
57 |
6 |
9.5 |
521 318 048 |
------ |
31.8 |
15.9 |
4.8 |
57 |
8 |
9.5 |
520 350 048 |
520 350 |
35 |
15.9 |
4.8 |
57 |
6 |
12.7 |
521 350 048 |
521 350 |
35 |
15.9 |
4.8 |
57 |
8 |
12.7 |
New Bit No. |
Old Bit No. |
D/inch |
H/inch |
R/inch |
L/inch |
d/inch |
B/inch |
525 285 032 |
525 285 |
1-1/8 |
1/2 |
1/8 |
2-1/8 |
1/4 |
1/2 |
525 318 048 |
------ |
1-1/4 |
5/8 |
3/16 |
2-1/4 |
1/4 |
3/8 |
525 350 048 |
525 350 |
1-3/8 |
5/8 |
3/16 |
2-1/4 |
1/4 |
1/2 |
527 285 032 |
527 285 |
1-1/8 |
1/2 |
1/8 |
2-1/8 |
1/2 |
1/2 |
527 318 048 |
------ |
1-1/4 |
5/8 |
3/16 |
2-1/4 |
1/2 |
3/8 |
527 350 048 |
527 350 |
1-3/8 |
5/8 |
3/16 |
2-1/4 |
1/2 |
1/2 |