160mm Extra Drill Bits, 4mm Lengthened Straight Shank HSS Drill Bits, for Drilling Wood, Aluminum, Plastic

The drillare made from premium high speed steel for increased durability. Bit has a straight shank, which is more convenient to operate. Milled flutes with cut spiral that delivers fast material removal. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. This finish gives a strongly adhering treatment that acts to retain cutting fluid and prevent chip to tool welding, reducing the formation of a built-up . Features: Straight shank design is more suitable for many electric drills and drilling machines(here is not included)

and ed flute will make the drilling be more easy and effortless Suitable for wood, aluminum, plastic, etc Specification: 100% Brand new and high quality Product Name: Drill Bit Design: Straight Shank Material: HSS Diameter and total length: 4mm bit, 160mm total length Package include:  1 x Drill Bit