Inch/Metric
TAPS
DIES
GAGES

3 1/2"-4 NC

HAND TAP93B61750717508

3 1/2"-8 NS

HAND TAP83B61751117512

3 1/2"-8 NPT/F

NPT/F TAPER0917514
NPT/F TAPER INT THD0917517

3 1/2"-12 NS

HAND TAP72B81752117522