21/64" Carbide Tipped Jobber Length Drill Bit Shopify Collective The adjustment knob is knurled

The adjustment knob is knurled and round to provide grip for making adjustments even when you're wearing gloves or have slippery hands

Sockets with only two detent grooves

Tips are precisely machined and coated with black manganese phosphate

Part Number: EZ-32220

including pulling and scraping

21/64" Carbide Tipped Jobber Length Drill Bit Shopify Collective The adjustment knob is knurledProduct Description Features heavy duty construction and heat treated body for optimum wear resistance and support of the carbide tip. Used in the production of cast iron, non ferrous metals, and many composite materials such as hard rubber or copper alloys. Not for steel. Brand Drill America Part Number D ACT21 64 Size 21 64" Material Carbide Tipped Finish Uncoated (Bright) Flute Length 3 5 16" Length 4 5 8" Point Conventional Point Shank Type Round