Fractional Tap, National Fine Thread, 9/16-In. x 18 Cutters Contains a rust inhibitor to

Contains a rust inhibitor to help prolong the life of the camp appliance and its generator

No other cartridges are certified to be fitted with this mask

4" x 2-3/8"

9'' x 3tpi

counter bore attaches securely to the flats on shank with hex screws & adjusts for controlled pilot hole depth

Fractional Tap, National Fine Thread, 9/16-In. x 18 Cutters Contains a rust inhibitor to9 16" x 18, national fine thread, fractional tap, carbon steel, ideal for routine maintenance, repair work & for rethreading where high accuracy & tolerance thread is not critical, straight flutes are ground to provide rapid chip removal for efficient threading, designed for hand threading work in a variety of materials taps produce a class 2b thread, use 33 64" drill bit.