Grobet is proud to present this line of cobalt steel twist drills. Ideal for platinum, stainless, silicon-chrome and chrome-nickel. These drills will last 30 times longer than standard drills. Sold by pack of 10. It is highly recommended that you use water or coolant when working with these drills. Also, try our Pro-Cut lubricant - item No. 19.928
No.
Drill Size
Size
No.
Drill Size
Size
28.950
50
.0700"
28.961
61
.0390"
28.951
51
.0670"
28.962
62
.0380"
28.952
52
.0635"
28.963
63
.0370"
28.953
53
.0595"
28.964
64
.0360"
28.954
54
.0550"
28.965
65
.0350"
28.955
55
.0520"
28.966
66
.0330"
28.956
56
.0465"
28.967
67
.0320"
28.957
57
.0430"
28.968
68
.0310"
28.958
58
.0410"
28.969
69
.0292"
29.959
59
.0400"
28.970
70
.0280"
28.960
60
.0390"
**Specials**
Grobet USA™ products are
available worldwide
through
our international network
of authorized distributors.