We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Cleveland

Cleveland C44576 Cobalt M42 Square Tool Bit 5/16 In x 2-1/2 In

SKU CH-NFBD-YA241

Cobalt M42 square tool bit for lathe work, 5/16 inch square by 2-1/2 inches long

  • Cobalt M42 alloy resists heat and wear during heavy cuts
  • Square 5/16 in blank ready for custom grinding to any profile
  • 2-1/2 in overall length fits standard tool holders securely
  • Non-beveled edges allow precise shaping for turning and facing operations
  • Cleveland C44576 quality ensures consistent hardness across the full blank

Cleveland C44576 Cobalt M42 Square Tool Bit

The Cleveland C44576 is a Cobalt M42 square tool bit designed for general machining and lathe work. It suits machinists and maintenance technicians who need a durable blank for custom grinding or direct use in turning operations.

Check holder compatibility and application needs

Verify that your tool holder accepts a 5/16 in square shank and that the 2-1/2 in overall length fits your machine envelope. Confirm the non-bevelled geometry matches the cutting approach you intend to use before ordering.

Replaces worn or lower-grade blanks

This bit upgrades from standard high-speed steel blanks when longer edge life in abrasive or high-heat materials is required. The jump is worth it for shops seeing rapid wear on softer tool bits during repetitive facing or boring cycles.

Highlights

  • Cobalt M42 alloy resists heat and wear during heavy cuts
  • Square 5/16 in blank ready for custom grinding to any profile
  • 2-1/2 in overall length fits standard tool holders securely
  • Non-beveled edges allow precise shaping for turning and facing operations
  • Cleveland C44576 quality ensures consistent hardness across the full blank

Specifications

BrandCLEVELAND

Questions about this item

What comes in the package and is any additional hardware needed?

The package contains the single cobalt M42 square tool bit; no extra hardware is required for standard lathe use.

Which version should I select for general-purpose turning?

The C44576 model with 5/16 inch square cross-section and 2-1/2 inch length suits most general-purpose turning tasks.

How does the M42 cobalt grade perform in a real lathe setup?

M42 cobalt retains hardness at high temperatures, giving longer edge life on tough alloys compared with standard high-speed steel.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.