China M35 HSS Cobalt Spot Weld Drill Bits Cutting Accessories for Separate Spot Welded Panels, Find details about China Cutting Accessories, Drill Bits from M35 HSS Cobalt Spot Weld Drill Bits Cutting Accessories for Separate Spot Welded Panels
Product Name | HSS NC Centering Spot Drill for Center Drilling |
Material | High Speed Steel ( Tungsten Carbide, M35 -Cobalt are Available) |
Process | Fully Ground |
Cutting Angle | 90 Degree ( 120 Degree,60 Degree are Available) |
Surface | White(TiAlN Coated ,Tin-Coated,Amber are Available) |
Size | 1/8-3/4inch (2-20MM is Available) |
Package | Plastic Tube,Blister Card,Plastic Box are Available |
Features | 1.The primary purpose of a spot drill to make a "dimple" in the workpiece so that the twist drill does not deflect and "walk" off-center and the hole is drilled in the correct location. 2.The Spot drill suitable for continuous production on aluminium, plastics, free cutting steels, cast iron, titanium, non-ferrous materials and some aerospace materials. 3.Drill bits are made from a high speed cobalt blend that makes it a great option for drilling into harder steel materials 4.Precise position and chamfer are accomplished at one time to improve machining quality. 5.Available in 60/90/120 and 140 degrees, coated in AlTiN or left uncoated. |