Cleveland C33264 Square End Mill 0.5 in 4 Flute Hss Ticn

Product Description

The CLEVELAND C33264 is a 4-flute square end mill designed for metal removal and contouring in milling operations. Built from high speed steel (HSS) with a TiCN (titanium carbonitride) finish, it offers improved wear resistance and heat tolerance compared to uncoated HSS tooling. The 0.5-inch mill diameter pairs with a 0.375-inch straight-cylindrical shank featuring a Weldon flat for positive drive in the spindle. With a 1-inch length of cut and a 2.6875-inch overall length, this is a standard-reach tool suited for general-purpose milling work. It is installed and operated by machinists and tool-and-die tradespeople using CNC or manual milling equipment.

This end mill targets applications in cast iron, non-ferrous metals, and steel. The 30-degree helix angle and spiral flute geometry promote chip evacuation in a range of material conditions. The centercutting design allows plunge milling as well as conventional peripheral and slot cutting. It is appropriate for job shop, maintenance, and production milling environments where HSS tooling is preferred over carbide, such as interrupted cuts or applications where tool toughness is prioritized over speed.

Key Features

• TiCN finish increases surface hardness and extends tool life versus uncoated HSS
• Centercutting geometry enables direct plunge entry without pre-drilling
• 30-degree helix angle promotes efficient chip evacuation
• Right-hand cut and right-hand spiral flute configuration for standard spindle use
• Weldon flat on straight-cylindrical shank provides positive, slip-resistant drive
• Series HG-4C regular-length profile fits standard ER and Weldon toolholders

Compatibility

Designed as a general-purpose HSS square end mill compatible with milling machines and machining centers using standard 0.375-inch bore toolholders or Weldon-flat set-screw holders. Rated for use in cast iron, non-ferrous metals, and steel workpiece materials.

Installation Notes

Installation is performed by a machinist or toolroom technician. The spindle must be fully stopped and the machine de-energized before changing tooling. Seat the Weldon flat securely against the set screw in the holder to prevent axial pullout under load. Verify runout with a dial indicator before production cuts; excessive runout accelerates tool wear and degrades surface finish.