21/64" X 3/8" HSS 4 Flute Double End End Mill BoltsandNuts.com The bits are made from

The bits are made from hardened 8660 steel (HRC 55–58) and finished with a zinc phosphate conversion coating that provides lasting corrosion resistance without altering dimensions or flaking

Square dies are threading tools used to create external threads on square-shaped rods and shafts

Part Number: BIT-DULSD1

Included adhesive pads help keep the block from moving

Shank Size: 10

21/64" X 3/8" HSS 4 Flute Double End End Mill BoltsandNuts.com The bits are made fromProduct Description High speed steel end mills are reliable tools designed for versatile milling applications. Known for their toughness and durability, these end mills provide excellent cutting performance and longevity across a wide range of materials. They can be used for general purpose milling including profiling and open ended slots and keyways. Brand Drill America Part Number DWCF210A Size 21 64" Material High Speed Steel Flute Length 3 4"