Fractional Tap, National Fine Thread, 9/16-In. x 18 Brand_Camco the Oregon 72LPX chain is

the Oregon 72LPX chain is low-vibration with full chisel cutters offering top performance for the most demanding of users

Four flower-shaped feeding ports with comfortable perches

300 lb working load limit

The result is a smooth finish that can be done faster than traditional brushing

dried Lactobacillus plantarum fermentation product

Fractional Tap, National Fine Thread, 9/16-In. x 18 Brand_Camco the Oregon 72LPX chain is9 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.