Specification Brand : HUAZHICHUN BulletPoint : PCTTMAX Praxis SDS Max Shank BulletPoint1 : MATERIAL: M42 8% Cobalt Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life. BulletPoint2 : SIZE : Metric 7mm , 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! Color : Multiple Colors ExternallyAssignedProductIdentifier : 4741352770840 FinishType : Titanium IncludedComponents : 7mm 5pcs ItemName : HUAZHICHUN 5pcs Size 7mm Titanium Drill Bit Set,Premium HSS Drill Bit Set for Metal,Steel,Wood,Plastic,Aluminum Alloy.Hard Materials ItemTypeKeyword : threaded-shank-drill-bits Manufacturer : Xuzhou Huazhichun CNC Technology Co., LTD Material : 高速钢 ModelNumber : 7mm NumberOfItems : 200 PartNumber : 3f0a0983-f8ee-728a5605ab210a ProductDescription : drill bits for nails,drill bit set,cobalt drill bit set,drill bits for hardened steel,makita drill bit set, ProductSiteLaunchDate : 2022-11-04T09:55:13.544Z Size : Small Style : Wire Collated SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Aluminum,Metal,Metals,Plastic,Stainless Steel,Steel,Wood UnitCount : 5 UnspscCode : 20121600