2Pcs Twist Drill Bit Extra Long 200mm Extended Straight Shank HSS Spiral Drill Bit 4mm

Feature: 1. Strong Material: The twist drill bits are made from excellent high speed steel material for increased durability, has high hardness and wear proof, high temperature strength, good toughness and impact proof. 2. Useful and Practical: Bit has a straight shank, which is more convenient to operate. Milled flutes with deep 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. 3. Functions and Uses:This finish of twist drill bit gives a strongly adhering surface treatment that acts to retain cutting fluid and prevent chip to tool welding, reducing the formation of a built up edges. 4. For Metal Working: Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. 5. Applicable Scenario: Twist drill bits are commonly used to drill holes with hand operated drills, standalone drill presses, or lathes, you can use with confidence. Specification: Item Type: Twist Drill Bit Material: High Speed Steel Length: Approx. 200mm 7.87in Diameter: Approx. 4mm 0.16in. Package List: 2 x Twist Drill Bit