Cleveland C33658 Square End Mill 9/32 in 2 Flute Hss Tin

Product Description

The CLEVELAND C33658 is a double-end, two-flute square end mill designed for material removal and profiling operations on metal workpieces. Built from high speed steel (HSS) with a titanium nitride (TiN) finish, it delivers extended tool life and reduced friction at the cutting edge. The 9/32-inch (0.2813 inch) mill diameter pairs with a 9/16-inch length of cut and a 3/8-inch straight-cylindrical shank with Weldon flat. The 30-degree spiral flute geometry and right-hand cut with right-hand flute promote efficient chip evacuation. Centercutting capability allows plunge entry directly into the workpiece. This tool is handled by machinists and CNC operators in job shop and production environments.

The C33658 is suited for slotting, profiling, and light plunging operations on cast iron, non-ferrous metals, and steel. Its regular-length classification and 3-3/8-inch overall length make it appropriate for standard-reach applications where rigidity and minimal deflection are priorities. The HD-2 series designation indicates a heavy-duty geometry optimized for aggressive cuts in the listed workpiece materials. This end mill fits manual mills, CNC machining centers, and toolroom equipment using a 3/8-inch collet or end mill holder.

Key Features

• Double-end design provides two usable cutting ends, extending tool service life
• TiN coating increases surface hardness and reduces built-up edge on the cutting faces
• 30-degree helix angle promotes smooth chip flow and reduced cutting forces
• Centercutting geometry allows direct plunge milling without pre-drilling
• Weldon flat on shank prevents tool pullout under heavy radial loads
• Right-hand cut and right-hand flute configuration compatible with standard spindle rotation

Compatibility

Designed for use on cast iron, non-ferrous metals, and steel workpieces. Fits any 3/8-inch end mill holder or collet system on manual or CNC milling equipment. Part of the Cleveland HD-2 series.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per applicable safety procedures. Seat the Weldon flat against the set screw in the holder to prevent axial slippage under load. Verify runout with a dial indicator after clamping before beginning a cut. Inspect both cutting ends for chipping or wear before selecting the active end for a new operation.