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Cleveland C44582 Cobalt M42 square tool bit 860 half-inch by four-inch

Cleveland

Cleveland C44582 Cobalt M42 Square Tool Bit 860 1/2 In x 4 In

SKU CH-1TC7-WQA75

Cobalt M42 square tool bit for lathe work, 1/2 in by 1/2 in by 4 in, non-bevelled

  • Cobalt M42 material resists wear on tough alloys
  • 860 grade steel holds cutting edges longer
  • 1/2 inch square profile fits standard tool holders
  • 4 inch overall length provides extended reach
  • New condition ensures full factory performance life

Cleveland Cobalt M42 Square Tool Bit

The Cleveland C44582 Cobalt M42 square tool bit is a precision lathe tool blank made from high-speed cobalt steel. It measures 1/2 inch in width and height with an overall length of 4 inches. The non-beveled design suits machinists and metalworkers shaping custom cutting profiles on lathes.

Check shank size and material compatibility

Verify that your lathe tool holder accepts a 1/2 inch square shank before ordering. Confirm the workpiece material is suited to M42 cobalt steel, which handles high-temperature alloys and hardened steels. Ensure your setup can accommodate a 4 inch overall tool length without clearance issues.

For custom tool grinding on tough alloys

This blank suits machinists who grind their own tool geometry for turning difficult metals. It is not for operators needing ready-to-use cutting edges or replaceable indexable inserts. Buyers who want pre-formed tool bits or carbide-tipped alternatives should look at something else.

How it compares

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

Price $50.99
Pricier than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND

Questions about this item

What comes in the box with the Cleveland C44582 Cobalt M42 square tool bit, and do I need to buy a holder separately?

The box contains the 1/2 in by 4 in cobalt M42 square tool bit only. A compatible tool holder for 1/2 in square blanks must be purchased separately if you do not already have one.

Should I choose the M42 cobalt version over other grades for general lathe work?

The M42 cobalt grade provides high red hardness and wear resistance, making it suitable for high-speed turning of tough alloys and stainless steels where standard high-speed steel would dull quickly.

How does the 860 designation affect performance when the bit is mounted in a lathe?

The 860 designation identifies this specific Cleveland cobalt M42 blank; in use it delivers the heat resistance and edge retention expected from M42 cobalt during sustained cuts on hard materials.

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