Cleveland C33000 Square End Mill 0.625 in 4 Flute Cobalt

Product Description

The CLEVELAND C33000 is a double-end cobalt square end mill designed for high-performance milling in demanding metal-cutting applications. Built from M42 cobalt high-speed steel and finished with a TiCN coating, it delivers improved wear resistance and heat tolerance compared to standard HSS tooling. The 0.625-inch diameter cutter features 4 spiral flutes with a 30-degree helix angle and a right-hand cut with right-hand flute orientation. It is center-cutting, allowing plunge entry where required. Licensed machinists and tool-and-die professionals install this end mill in CNC machining centers and manual knee mills.

The C33000 is suited for milling high-temperature alloys, stainless steel, and carbon and alloy steels. The HDC-4C series is engineered specifically for tougher workpiece materials that demand a more wear-resistant tool substrate and coating. With a 1.375-inch length of cut and 5-inch overall length, it fits standard tool-holding arrangements in both production and job-shop environments. The straight-cylindrical shank with Weldon flat accommodates set-screw style end mill holders for positive drive and minimal runout.

Key Features

• M42 cobalt steel construction for elevated red hardness and wear resistance in alloy and stainless steel cuts
• TiCN coating reduces friction and extends tool life in abrasive workpiece materials
• 30-degree spiral flute helix promotes efficient chip evacuation and smooth cutting action
• Center-cutting geometry permits direct plunge milling without a pre-drilled pilot
• Double-end design provides two usable cutting ends per tool, extending overall service life
• Weldon flat on straight-cylindrical shank ensures positive engagement in set-screw holders

Compatibility

Designed for use with standard 0.625-inch end mill holders, collet chucks, and Weldon-flat-style side-lock holders in CNC machining centers and manual milling machines. Primary workpiece materials include high-temperature alloys, stainless steel, and steel per material codes M, P, and S.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's tooling and runout specifications. Secure the shank fully within the holder to the recommended gauge-line depth before engaging the set screw against the Weldon flat. Verify spindle runout at the cutting diameter prior to production use. Always bring the spindle to a full stop before changing or inspecting tooling.