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HSS NC Centering Spot Drill Bit for Center Drilling
HSS NC Centering Spot Drill Bit for Center Drilling


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 HSS NC Centering Spot Drill Bit for Center Drilling

 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.
 Product Sizes

HSS NC Centering Spot Drill Bit for Center Drilling

D1 D L1
inch inch inch
1/8 1/8 1/4
3/16 3/16 3/8
1/4 1/4 3/8
3/8 3/8 1/2
1/2 1/2 3/4
5/8 5/8 1
3/4 3/4 1

 

* Other Sizes are available,Concact Us to Learn More.

 

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