3" HSS 5MT Taper Shank Drill Bit BoltsandNuts.com The 4 mm bits are

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Part Number: BIT-DWDRSD1-31/64

Part Number: 50C550WASS/316

Size: 29/64"

3" HSS 5MT Taper Shank Drill Bit BoltsandNuts.com The 4 mm bits areProduct Description A dependable, general purpose high speed steel drill bit ideal for production, maintenance or portable drilling jobs. They are for use in a wide range of materials such as aluminum, brass, copper, metal, plastic and wood. They are surface treated with abrasion resistant black oxide and made of high speed steel with a 118 conventional point. They have a taper shank. Brand Drill America Part Number DWDTS3INCH Size 3" Material High