Twist Drill Bit

DIN338 WHITE FINISHED DRILL BIT Manufacturing Process:fully ground. Material: HSS Standard:DIN338 Sizes:0.2mm-20mm or 1/64"-5/8" Surface Finishing:Black, Black & White, Coffee, etc. Point Angle:118 DIN338 TIN COATED DRILL BIT Manufacturing Process:Rolled & Polished. Material:HSS Standard:DIN338 Sizes:0.2mm-20mm Surface Finishing:White, TIN coated, Rainbow Colour, etc. Point Angle:118 PVC bag,PVC tube,Plastic box

Item No.: 10111001 10232001 10333001 10431001 material: HSS HSS/HSSCO Process: roll forged fully ground Finish: black oxide bright Titianium bright Point angle: 118/135 118/135 118/135 118/135. at your request

Standard: din338 Material: hss4241, hss4341, hss9341, m42; m35; m7; m2, etc Finish: black oxide, polished, tin coated and rainbow etc Process: roll forged, half ground, fully ground Point angle: 118 or 135 split point Application: for drilling cast steel, malleable iron, sintered metal, non-ferrous metals and wood, etc Packing: by plastic bag, metal box etc Diameter ranges from 1mm to 20mm. Drill sets like 13/19/25pcs are available. We make them in accordance with your demand. By plastic bag, metal box etc

Name: hss twist drill bits, din338, rolled. Manufacturing process: roll forged. Material: 4241, 4341, 9341, m2 Standard: din338 Sizes: 0.2mm-20mm or 1/64"-5/8" Surface finishing: black, black & white, coffee, etc. Point angle: 118fpor 135fp Item no.: ty-h001

Fully ground. Material: 4341, 9341, m2 Standard: Din338 Sizes: 0.2mm-20mm or 1/64"-5/8" Surface finishing: White, tin coated, rainbow color, bright, black & bright, zirconium coating, black, coffee color, etc. Point angle: 118fpor 135fp Item no.: Ty-h003 According to your demands

The screw Angle of twist drill mainly affects the size of cutting edge Angle, edge edge strength and chip removal performance, which is usually 25 32 Spiral grooves can be processed by milling, grinding, hot rolling or hot extrusion, and the front end of the drill bit forms a cutting part after grinding. The cutting Angle of the standard twist drill is 118, the bevel Angle of the cross edge is 4060, and the back Angle is 8 20. Due to structural reasons, the rake Angle is large at the outer edge and gradually decreases to the middle, and the transverse edge is negative rake Angle (up to about -55), which acts as extrusion when drilling. we are a professional manufacturer of power tool accessories, we are specilized in various cutting tools and tool set, drill bits, hole saw, cutting discs, etc. Our Twsit drill bits are exported to many countries all over the world. We produce HSS twsit drill bits for metal working, carbon steel drill bits for wood working, and also masonary drill bits for concrete works. We provide OEM if you have large quantity, custom the twist drill bits as customers' request. We can produce various sets include different size in metric and inch. and hope we can start our cooperation in the future.