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Square cobalt tool bit, 3/16 inch section, 2-1/2 inches long

Cleveland

Cleveland C44571 Cobalt M42 Square Tool Bit 860 3/16 In x 2-1/2 In

SKU CH-J5AR-1FNJV

Cobalt M42 square tool bit for lathe work, 3/16 in by 2-1/2 in, non-bevelled blank

  • Cobalt M42 alloy resists wear on hard materials
  • Square 3/16 in profile fits standard tool holders
  • 2-1/2 in overall length supports deep cuts
  • Non-bevelled blank allows custom grinding shapes
  • Cleveland 860 series built for lathe tooling

Cobalt M42 square tool bit

This Cleveland C44571 bit is a non-beveled square blank made from cobalt M42 high-speed steel. It measures 3/16 inch in width and height with an overall length of 2-1/2 inches. The blank format lets machinists grind custom profiles for turning operations on a lathe.

Ground-profile limits for this blank

The 3/16-inch square cross-section sets the maximum tool size you can grind from this blank. Cobalt M42 retains hardness at higher temperatures than standard high-speed steel, extending edge life in tough alloys. The non-beveled stock requires full grinding before use.

Upgrade from standard HSS blanks

This bit replaces general-purpose high-speed steel blanks when cutting stainless steels, nickel alloys or other work-hardening materials. The jump is worth it when tool wear shortens production runs or when interrupted cuts chip standard edges. It is not for applications needing pre-formed geometries or larger tool sections.

How it compares

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

Price $12.99
Cheaper than about 82% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND

Questions about this item

Which square tool bit size should I select for my lathe?

This bit measures 3/16 inch square by 2-1/2 inches long, so choose it when your tool holder accepts that exact cross-section and reach.

What does the M42 cobalt grade mean for cutting performance?

M42 cobalt contains 8% cobalt for high red hardness, letting the bit keep a sharp edge longer in tough steels and high-temperature alloys.

How does the non-bevelled blank design affect use?

The flat, non-bevelled end lets you grind any custom tool geometry you need — turning, facing or threading — without a preset angle limiting the shape.

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