HSS NC Centering Spot Drill Bit for Center Drilling

 

Product description: 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.

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 Product Description
Product Name HSS NC Centering Spot Drill Bit 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.

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