20pcs Hole Saw Drill Bit Alloy Carbide Cobalt Steel Cutter Stainless Steel Copper Steel Plate Metal Drill Bit Metal Drill bit

SPECIFICATIONSBrand Name: BRSCHNITTType: Center Drill BitUse: Metal DrillingMaterial: OtherHign-concerned Chemical: noneOrigin: Mainland ChinaCertification: CEDIY Supplies: MetalworkingChoice: yessemi_Choice: yesItem:  Triangle Shank TCT Carbide Metal Opener 15 Holes 20PCSQuantity:  20PCSConnection:Triangle Shank Specification:Triangle shank diameter: 10mmAccessories: centre drill*2, hexagonal wrench*2, spring*3Substrate height (total height without centre drill): 79mm;Drilling depth: recommended below 15mm thickness, limit is 25mmApplication:Drill holes in stainless steel, steel plates, profiles, castings, aluminium alloys, copper and other metal plates;Stainless steel plate (thickness of 8MM or less), steel plate (thickness of 25MM or less), aluminium plate (thickness of 25MM or less), etc., generally is recommended for plates with a thickness of 15MM or less;Features:1. 1 set of 3 edges, including the outer edge, the middle edge and the inner edge, sharp and efficient2. During the c