Cleveland C41859 Square End Mill 3/4 in 2 Flute Hss HGA-2

Product Description

The CLEVELAND C41859 is a two-flute, single-end square end mill designed for precision milling operations in non-ferrous metals and similar materials. Built from high speed steel with a bright, uncoated finish, this tool features a 37-degree right-hand helix and right-hand cutting direction for efficient chip evacuation and smooth cutting action. The 3/4-inch mill diameter pairs with a 1-5/8-inch length of cut, giving machinists a capable reach for slotting, profiling, and side-milling operations in standard-reach applications. Centercutting geometry allows plunge entry directly into the workpiece.

The C41859 belongs to the Cleveland HGA-2 series and is suited for use on CNC machining centers, manual knee mills, and similar milling equipment. It is primarily intended for non-ferrous workpiece materials, including aluminum, brass, copper, and similar alloys. The straight cylindrical shank with Weldon flat provides positive drive retention in standard end mill holders and set-screw collet chucks. This tool is appropriate for production and job-shop environments where a reliable, uncoated HSS end mill is required for general-purpose cutting.

Key Features

• High speed steel construction suited for non-ferrous milling applications
• 37-degree right-hand spiral helix for aggressive chip removal
• Centercutting design allows direct plunge entry
• Straight cylindrical shank with Weldon flat for secure holder retention
• Bright, uncoated finish — no coating buildup risk on softer materials
• Single-end configuration; HGA-2 series regular-length geometry

Compatibility

Designed as a direct-fit replacement or standard tooling option for 3/4-inch straight-shank end mill holders and Weldon-flat set-screw chucks used in CNC and manual milling machines. Intended for non-ferrous workpiece materials per Cleveland HGA-2 series specifications.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and locked before mounting or removing the end mill from any holder. Seat the shank fully into the holder bore and torque set screws against the Weldon flat per the holder manufacturer's specifications. Verify runout with a dial indicator before beginning any cut.