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.
#190030-335 .335" Cobalt Steel Drill Bit
##190030-350 .350" Cobalt Steel Drill Bit
#1900030-370 .370" Cobalt Steel Drill Bit
#190030-SET Cobalt Steel Drill bit Set for .335 .350 & .370 Hosels
Look at the PDF below.