Cleveland C33085 Square End Mill 9/16 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33085 is a double-end, four-flute square end mill designed for precision milling of ferrous and non-ferrous materials. Manufactured from high speed steel with a titanium nitride (TiN) finish, it delivers improved wear resistance and tool life over uncoated HSS tooling. The 9/16 inch cutting diameter and 1-3/8 inch length of cut make it well suited for slotting, profiling, and peripheral milling operations. A 30-degree spiral helix angle promotes efficient chip evacuation. Centercutting geometry allows plunge entry directly into the workpiece. This tool is installed and operated by machinists and tool-and-die professionals on manual or CNC milling machines.

The C33085 is intended for use on cast iron, non-ferrous metals, and steel workpieces. Its regular-length configuration fits standard toolholders without the need for extended-reach adapters. The double-end design provides a second cutting end when the first end reaches end of life, reducing per-operation tooling cost. The straight-cylindrical shank with Weldon flat accommodates standard end mill holders and set-screw collet chucks commonly found in production and job-shop environments.

Key Features

• Double-end design extends usable tool life by providing two cutting ends per tool
• TiN coating increases surface hardness and reduces friction at the cutting edge
• Centercutting geometry supports direct plunge milling without a pre-drilled entry hole
• 30-degree helix angle promotes efficient chip flow and reduces heat buildup in the cut
• Right-hand cut and right-hand flute for use in standard milling machine spindles
• Weldon flat on straight shank prevents pullout under heavy cutting loads

Compatibility

Designed as an OEM-style replacement or equivalent for applications requiring a 9/16 inch diameter, 4-flute, double-end HSS square end mill in the Cleveland Series HD-4C product family. Compatible with workpiece materials including cast iron, non-ferrous metals, and steel.

Installation Notes

Installation is performed by qualified machinists. Secure the Weldon flat shank in a properly sized end mill holder or set-screw collet chuck before operation. Verify spindle speed and feed rate are appropriate for the workpiece material and cutting diameter before engaging the cut. Always power down and lock out the spindle before changing or adjusting tooling.