Cleveland C33043 Square End Mill 7/16 in 4-flute Hss

Product Description

The CLEVELAND C33043 is a double-end, 4-flute square end mill manufactured from high speed steel (HSS). It features a 7/16-inch mill diameter, a 1-inch length of cut, and a 1/2-inch straight-cylindrical shank with Weldon flat. Overall length is 4-1/2 inches. The right-hand cut, right-hand spiral flute geometry at a 30-degree helix angle promotes efficient chip evacuation and surface finish across a range of workpiece materials. Centercutting capability allows plunge entry without a pre-drilled pilot hole. This tool is suited for milling operations performed by machinists and tool-and-die professionals on manual or CNC milling equipment.

The C33043 is designed for cutting cast iron, non-ferrous metals, and steel. The HD-4C series regular-length geometry fits standard toolholding setups where reach is not a primary constraint. The uncoated HSS construction makes it a practical choice for shops that resharpen tooling in-house, and the double-end design provides a second usable cutting end when the first dulls, extending tool life per purchase.

Key Features

• Double-end design provides two cutting ends per tool
• Centercutting construction allows direct plunge milling without a pilot hole
• 30-degree helix angle spiral flutes promote chip evacuation and reduce heat buildup
• Right-hand cut and right-hand flute geometry for standard spindle rotation
• Straight-cylindrical shank with Weldon flat for positive drive in set-screw toolholders
• Uncoated HSS allows in-house resharpening with standard grinding equipment

Compatibility

Designed as an OEM-style replacement or standard tooling selection for milling applications in cast iron, non-ferrous metal, and steel workpieces using 1/2-inch bore end mill holders or Weldon-flat set-screw toolholders.

Installation Notes

Installation is performed by machinists using standard end mill holders or Weldon-flat set-screw collet chucks rated for 1/2-inch shank tooling. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the holder and torque set screws per the toolholder manufacturer specifications. Verify runout with a dial indicator before cutting, particularly when tight tolerance work is required.