Zak Jewelry Tools

Premium Gold Cobalt 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's highly recommended that you use water or coolant when working with these drills.

DRILL SIZE SIZE
50 .0700"
51 .0670"
52 .0635"
53 .0595"
54 .0550"
55 .0520"
56 .0465"
57 .0430"
58 .0420"
59 .0410"
60 .0400"
61 .0390"
62 .0380"
63 .0370"
64 .0360"
65 .0350"
66 .0330"
67 .0320"
68 .0310"
69 .0292"
70 .0280"