Correct pitch is determined by matching blade teeth with threaders
Each blade is clearly marked with proper thread size
Blades are protected in a sturdy steel case
Combination of 31 American National 60° and 24 Metric 60° thread leaves
Description
HHIP 55 Piece 4-42 and.25-6mm tpi 60 degree screw pitch gage. Correct pitch is determined by matching blade teeth with threaders. Each blade is clearly marked with proper thread size. Blades are protected in a sturdy steel case. Combination of 31 American National 60° and 24 Metric 60° thread leaves.