Cleveland C38962 Keyway End Mill 5/16in 2 Flute Hss Ticn

Product Description

The CLEVELAND C38962 is a 2-flute keyway end mill designed for precision slot milling and keyway cutting in ferrous and non-ferrous materials. Built from high speed steel (HSS) with a titanium carbonitride (TiCN) finish, this centercutting end mill delivers a strong combination of wear resistance and toughness. The cutting diameter measures 5/16 inches with a length of cut (LOC) of 9/16 inches and a 30-degree helix angle optimized for finishing-class material removal. The straight shank includes a Weldon flat for secure tool holding. Licensed machinists, toolroom technicians, and industrial maintenance professionals typically specify this tool for keyway and slot applications.

The C38962 is suited for finishing operations in cast iron, steel, and non-ferrous metals. Its spiral flute geometry and TiCN coating reduce built-up edge and extend tool life in demanding production and maintenance environments. The 3/8-inch shank diameter fits standard end mill holders and collet chucks commonly found in vertical machining centers and manual knee mills. The 2-1/2-inch overall length keeps the tool rigid during slotting passes, reducing deflection in tight-tolerance keyway work.

Key Features

• 5/16-inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0015 inches for close-tolerance keyway slots
• TiCN coating improves surface hardness and wear resistance over uncoated HSS
• 2-flute spiral flute design promotes chip evacuation during slot and keyway cuts
• Centercutting geometry allows plunge entry without a pre-drilled start hole
• 30-degree helix angle configured for finishing-class material removal
• Weldon flat on 3/8-inch straight shank provides positive drive and prevents tool pullout

Compatibility

Designed as an OEM-style replacement and standard-production end mill for finishing operations in cast iron and steel (material codes K and P) and secondary use in non-ferrous metals (material code N). Part of the CLEVELAND HG-2K series.

Installation Notes

Install in a 3/8-inch end mill holder or collet chuck and torque the set screw against the Weldon flat following the tool holder manufacturer's recommended procedure. Ensure spindle is fully stopped and machine is in an energy-isolated state before changing tooling. Confirm runout with a dial indicator before commencing keyway cuts on close-tolerance shafts. Follow shop-specific speeds and feeds for HSS tooling in the workpiece material being machined.