Cleveland C33227 Square End Mill 1 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33227 is a 4-flute, single-end square end mill designed for material removal in milling operations on machining centers and manual mills. Ground from high speed steel and finished with a titanium nitride (TiN) coating, this tool offers wear resistance suited for production cutting in steel, cast iron, and non-ferrous metals. The 1 inch diameter cutter carries a 1-7/8 inch length of cut and an overall length of 4 inches. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces during slotting and peripheral milling passes.

This end mill is built for machinists running roughing and finishing cuts on ferrous and non-ferrous workpieces in job shop and production environments. The straight cylindrical shank with Weldon flat accommodates standard end mill holders and set-screw style toolholders with a 5/8 inch bore. The centercutting geometry allows direct plunge entry without a pre-drilled hole, which broadens its usefulness for slot milling, profiling, and pocket work. It belongs to the CLEVELAND HG-4C series, a line engineered for general-purpose high speed steel milling across a range of common workpiece materials.

Key Features

• 1 inch mill diameter with 1-7/8 inch length of cut for substantial material engagement
• TiN coating increases surface hardness and extends tool life in ferrous cutting applications
• 4-flute spiral configuration balances chip clearance with surface finish quality
• 30-degree helix angle reduces radial cutting forces and supports smooth chip flow
• Centercutting design enables direct plunge milling without pilot drilling
• Right-hand cut, right-hand flute geometry compatible with standard spindle rotation
• Weldon flat on shank provides positive drive and resists pullout in heavy cuts

Compatibility

Designed for use in end mill holders and set-screw toolholders with a 5/8 inch bore. Suited for milling steel, cast iron, and non-ferrous metals on vertical and horizontal machining centers and knee mills.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked or e-stop state. Seat the Weldon flat against the set screw in the toolholder before torquing to holder manufacturer specifications. Inspect the shank and collet bore for chips or damage before mounting. Follow shop safety protocols and applicable OSHA machine guarding requirements during setup and operation.