Cleveland C33445 Square End Mill 13/32 in 4-flute Hss Tin

Product Description

The CLEVELAND C33445 is a 4-flute, high speed steel square end mill designed for material removal in ferrous and non-ferrous machining applications. It features a 13/32 inch (0.4063 inch) cutting diameter and an extra-long 2-3/4 inch length of cut, making it suitable for deep-pocket milling and slotting where standard-length tools cannot reach. A titanium nitride (TiN) coating improves surface hardness and wear resistance, extending tool life across repeated cuts. The straight cylindrical shank with Weldon flat accepts standard end mill holders and set-screw style toolholders.

This end mill is suited for milling cast iron, non-ferrous metals, and steel in job shop, production, and maintenance machining environments. The extra-long length of cut is particularly useful for deep-cavity work, side milling on tall workpiece features, and applications where clearance between the holder and workpiece is limited. It is used by machinists on manual knee mills and CNC machining centers alike. The centercutting geometry allows direct plunge entry into material without a pre-drilled pilot hole.

Key Features

• Centercutting design permits direct plunge milling without a pilot hole
• TiN coating increases surface hardness and extends cutting life on ferrous materials
• Extra-long 2-3/4 inch length of cut reaches deep pockets and tall workpiece features
• 30-degree helix angle balances chip evacuation with cutting stability on steel and cast iron
• Right-hand cut, right-hand spiral flute — compatible with standard spindle rotation
• Weldon flat on shank reduces tool pull-out risk in set-screw toolholders

Compatibility

Designed as a direct-fit replacement or standard tooling selection for applications requiring a 3/8 inch shank, 13/32 inch diameter square end mill in the Cleveland HG-4C series. Compatible with any end mill holder or collet chuck accepting a 3/8 inch straight shank with Weldon flat. Primary workpiece materials are cast iron, non-ferrous metals, and steel.

Installation Notes

Installation is performed by qualified machinists. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Insert the shank fully into the holder and align the Weldon flat with the set screw before torquing. Verify runout with a dial indicator after clamping to minimize premature edge wear and maintain dimensional accuracy.