Specification Brand : Heyiarbeit BulletPoint1 : [Dimension]- Bit Diameter: 5.3mm / 0.21-inch; Shank Diameter: 5.3mm / 0.21-inch; Hardness (HRC): 62-63. BulletPoint2 : [Material]- Twist Drill is made of high speed steel, high speed steel construction is designed for durability and extended tool life. BulletPoint3 : [Feature] - Nitrogen Oxidation and Heat Treatment can increase the hardness and corrosion resistant of twist drill bit. BulletPoint4 : [Application]- Perfect for stainless steel, copper, aluminum alloy, as well suit for wood, plastic. BulletPoint5 : [Special Design]- Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance. FinishType : Black Oxide ItemName : Heyiarbeit 5.3mm Twist Drill High Speed Steel Bit HSS-4241 for Steel Aluminum Alloy 10 pcs ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 5 centimeters ItemPackageDimensions_Width : 5 centimeters ItemTypeKeyword : jobber-drill-bits Manufacturer : Heyiarbeit Material : High Speed Steel ModelNumber : DU235300ZGP05-FBA NumberOfItems : 10 PartNumber : DU045900ZGP04-FBA ProductDescription : Heyiarbeit 5.3mm Twist Drill High Speed Steel Bit
Technical Parameters Bit Diameter: 5.3mm / 0.21 inch Shank Diameter: 5.3mm / 0.21 Material: High Speed Steel 4241 Surface Treatment: Grind and Heat Treatment Color: Silver HRC: 62-63
Package Content 10 Pcs x Twist Drill
How to Use Twist Drill Bits *Ensure the left and right cutting edges of the drill are symmetrical when drilling. *Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.