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Cleveland C94571 82° cobalt countersink, bright uncoated finish

Cleveland

Cleveland C94571 Countersink 3/4 in 82° Cobalt

SKU CH-K6P8-SGVZY

A 3/4 inch cobalt countersink with an 82-degree angle for clean, precise holes

  • Product typeCountersinks & Sets
  • 82° angle produces clean countersunk holes for flush fasteners
  • Cobalt steel construction resists heat and wear during heavy drilling
  • 3/4 in diameter matches common screw and bolt sizes
  • Bright uncoated finish allows easy inspection of cutting edges
  • Cleveland brand trusted by professionals for reliable tool performance

Cleveland C94571 Countersink 3/4 in 82° Cobalt

This Cleveland C94571 countersink cuts an 82-degree chamfer on a 3/4-inch hole using cobalt steel for extended wear resistance. The bright uncoated finish suits general-purpose metalworking where coating buildup is undesirable. It is a single accessory designed for power and pneumatic tools in automotive and industrial maintenance. Professional mechanics and fabricators will find it ready for daily use.

Upgrading from standard high-speed steel

Cobalt material handles higher cutting temperatures than basic HSS, so the tool stays sharp longer in stainless steel, titanium and other tough alloys. The jump is worth it when regrinding intervals slow production or when workpiece hardness dulls conventional cutters quickly. No coating means the geometry stays true after each sharpening cycle.

Suits shops cutting hard metals on pneumatic

Buyers who need a coated tool for abrasive non-ferrous materials or a multi-piece set for varying hole sizes should look elsewhere. The single 3/4-inch diameter limits the range to one specific fastener size. Workflows requiring interchangeable pilots or adjustable depth stops are not addressed by this fixed-geometry cutter.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 62% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeCountersinks & Sets

Questions about this item

What size drill chuck is required to hold the 3/4 in countersink body?

The countersink has a 3/4 inch cutting diameter and uses a standard straight shank that fits a typical 1/2 inch or larger drill chuck for secure mounting.

How do I correctly set up the 82° cobalt countersink in a hand drill to avoid chatter?

Secure the workpiece, apply steady axial pressure, and run the cobalt tool at a low RPM appropriate for the material; the 82° angle matches standard flat-head screws for a flush finish.

When should the cobalt countersink be replaced or resharpened?

Replace or resharpen when the cutting edges become dull, produce rough holes, or require excessive feed force; cobalt steel retains hardness longer than high-speed steel in abrasive materials.

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