Specification Brand : HUAZHICHUN BulletPoint1 : MATERIAL: M42 8% Cobalt Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life. BulletPoint2 : SIZE : Metric 12.1mm , 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic BulletPoint3 : PACKAGE: 5pcs Each pack,This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.So It Can Produce Many More Holes. BulletPoint4 : HRC: 67-70HRC, The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit. BulletPoint5 : FEATURES:With a cobalt content of 8%, cobalt improves the bit's high-temperature and abrasive resistance. Stainless steel is usually machined with the M42 bit for small size drill bits because the M42 bit has higher strength, higher hardness, better toughness and is less likely to break. It's the best material in the drill! CuttingAngleString : 135 degrees FinishType : Titanium IncludedComponents : 12.1mm 5pcs ItemName : HUAZHICHUN 5PCS Size 12.1mm, M42 8% Cobalt Titanium Coated Drill Bit Set, HSS Drill Bits Kit with Storage Case for Steel, Aluminum, Soft Alloy Steel,Copper, Wood, Plastic, ItemTypeKeyword : threaded-shank-drill-bits Manufacturer : Xuzhou Huazhichun CNC Technology Co., LTD Material : High Speed Steel NumberOfItems : 200 PartNumber : 12.1mm ProductDescription : drill bits for nails,drill bit set,cobalt drill bit set,drill bits for hardened steel,makita drill bit set, ProductDescription1 : drill bits for nails,drill bit set,cobalt drill bit set,drill bits for hardened steel,makita drill bit set, ProductDescription2 : milwaukee drill bit set,drill bits,impact drill bit set,metal drill bits,long drill bit, ProductDescription3 : masonry drill bit set,drill bit,metric drill bit set,drill bit set for metal,masonry drill bit set, ProductDescription4 : impact drill bit set,metal drill bits for steel,drill bits sets,nail drill bit, ProductDescription5 : carbide drill bits,drill bits for metal,concrete drill bit set,impact drill bit set ProductSiteLaunchDate : 2022-11-17T07:10:32.014Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Aluminum,Copper,Metals,Plastic,Stainless Steel,Steel,Wood UnitCount : 5 UnspscCode : 27111700