MRK#1 Straight-Shank Tap Holder (Coolant Through) | 1 in.
MRK#2 Straight-Shank Tap Holder (Coolant Through) | 1 in.
MRK#3 Straight-Shank Tap Holder (Coolant Through) | 1-1/2 in.
MRK#4 Straight-Shank Tap Holder (Coolant Through) | 2 in.
