High quality straight shank twist drill bits for cast steel

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Product Description:

*Material: HSS4241, HSS4341, HSS6542(M2), HSS COBALT(M35 Co5%), HSS COBALT(M42 Co8%).


*Bit is constructed of high speed steel for the best combination of strength, heat resistance, and wear resistance


*Application: For drilling steel, cast steel, grey cast iron, malleable iron, sintered metal, low hardness Alloyed materials and stainless steel etc.


*For general use in wood, metal, and plastic


*Manufacturing Process: Ground, Milled, Rolled, Edge Ground.


*135 degree split point ensures a true start and eliminates bit walking


*Finish: Black finish, white finish, Black & White finish, Tin-coated Finish, Amber/Coffee Finish,

Rainbow Corlor Finish.Anodizing, Conversion Coating, Nickel plating, Zinc Plating, Chemical Polishing, Electric Polishing, Mechanical Polishing, Powder Coating, Painting, Glass bead blast, Sand blast, Passivation, Chemical Cleaning and Heat treatment, etc.


*Titanium coating resists corrosion,long life time


* Packing: PVC Pouch, Paper Box, Plastic tube, Metal Box or as percustumer's requirement


* Size: 0.15mm-25.0mm


* Hardness: 61-68 HRC


* Point Angle: 118* Or 135*(Split Point are avallable from 3.0mm)


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