Heavy Duty Tap And Dies Set 1/4 To 1/2 UNF

Size: 1/4 to 1/2 UNF Material: High Grade Carbon Steel Content: 

1/4  X 28 TPI

5/16 X 24 TPI

 3/8 X 24 TPI

 7/16 X 20 TPI

1/2 X 20 TPI