Model Number: twist drill Brand Name: shine peak Key Specifications/Special Features: Brief introductions:1) Standard: DIN338, DIN1897, DIN340, ISO235, ANSI B94. 11M, DIN345, DIN 18702) Material: HSS 4241, HSS 4341, HSS 9341, M2 (6542), M35,3) Manufactory process: roll forged, edge ground, fully ground, milled4) Point angle: 118-degree, 135-degree split point5) Surface finished: bright finished, black oxide, tin oxide, black flute & bright shank, rainbow6) flute type: N or VA7) Shank: straight shank drills, taper shank drills, reduce shank drills, 1/2" shank drills, hex shank drills Name twist Drill Bit HS code 8202390000 Process Silvered Welded and Coppered Welded Material HSS M35 118 or 135 degree split point Abrasive Diamond Packing 1pcs /Carton Size Sizes of adaptor for threaded bit:M14,M16, G1/2",5/8"-11. OEM/ODM Available Type code Any colour and segments sizes are available for DIY design. Usage Reinfore Concrete, Cured Concrete,Green Concrete, Brick Sample Cost Depends on the sizes, please contact us to discuss further