Cobalt Steel Drill Bits for .335 .350 & .370" Hosels
Produced to GolfMechanix exacting standards, for re-boring hosels on clubheads made of notoriously difficult to drill metals such as 17-4PH, titanium and marraging steel.
These HSS-Co alloyed and Titanium nitrated twist drills hold their rigidity and hardness at higher temperatures better than HSS drill bits.
Always pre-drill, before using at Reamer.
Available in:
#190030-335 (are 8.4 mm = .331") Cobalt Steel Drill Bit
##190030-350 (are 8.8 mm = .346") Cobalt Steel Drill Bit
#1900030-370 (are 9.3 mm = .366") Cobalt Steel Drill Bit
#190030-SET Cobalt Steel Drill bit Set for .335 .350 & .370 Hosels
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Look at the PDF below.