Standard Carbide Drills (706)

Carbide Countersink Drill for Ferrous and Non-Ferrous Materials


The single and multiple flute carbide countersinks are one of many value-minded products within the OSG Standard Carbide family of products. An economical solution without sacrificing consistent tolerancing and precision.


Sizes > 1/4" have hardened steel shanks. 1/4" and smaller are solid carbide.

Ideal for creating countersinks.


Can be used with CNC machines or hand tools.

Inch sizes only

Application Guide

ISO Work Material Recommended
P Low Carbon Steel : 1010, 1018
P Medium Carbon Steel : 1035, 1045
P High Carbon Steel : 1065
P Alloy Steels : 4140, 4340
P Die Steels
M Stainless Steels : 300
M Stainless Steels : 400
M Stainless Steels : 17-4PH
K Cast Iron
N Aluminum : 6061, 7075
N Aluminum : Casting
S Nickel Alloy : Inconel
S Titanium : 6AL4V (30HRC)
H Hardened Steels : ~35 HRC
H Hardened Steels : 35-45 HRC
H Hardened Steels : 45-50 HRC
H Hardened Steels : 50-70 HRC

good best



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General machining applications in Feroous and Non-ferrous materials.

Additional Information

When grinding or regrinding industrial cutting tools, residual grinding dust may occur. This dust may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.
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