Drill Bit Irons ,432” for Shaftlock - each
Using a drill press, ream the hosel of your golf club with a 13/32” Drill Bit (Irons) to a depth of 1”.
It is very important that the hosel hole is drilled completely straight. If the hosel is drilled off-centre this will weaken the neck of the head and could cause the neck to break. Use a 180210 Quick Reaming Vise.
OBS We do not, therefore, recommend drilling the hosel with a hand drill.