Cleveland C33213 Square End Mill 11/16 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33213 is a 4-flute, single-end square end mill designed for material removal and finishing cuts in machining operations. It is manufactured from high speed steel (HSS) and carries a titanium nitride (TiN) coating that improves surface hardness and extends tool life in ferrous and non-ferrous applications. The cutter measures 11/16 inches in diameter with a 1-5/8 inch length of cut and a 3-5/8 inch overall length. A straight cylindrical shank with a Weldon flat provides secure tool holding in standard end mill holders. The right-hand cut, right-hand spiral flute geometry with a 30-degree helix angle promotes efficient chip evacuation. This tool is installed by machinists and tool-and-die professionals in manual or CNC milling operations.

The C33213 is suited for milling cast iron, non-ferrous metals, and steel in light to medium-duty applications. Its centercutting capability allows the tool to plunge directly into the workpiece, making it practical for slot milling, pocketing, and profile work. The regular-length geometry fits standard machine setups where extended reach is not required. The 1/2 inch shank diameter is a widely used size compatible with common collet chucks and end mill holders found in most machine shop environments.

Key Features

• 11/16 inch cutting diameter with 1-5/8 inch length of cut for slot and pocket work
• 4-flute, right-hand cut and right-hand spiral flute design for balanced cutting forces
• 30-degree helix angle promotes chip flow and reduces heat buildup at the cutting edge
• TiN coating increases surface hardness and extends tool life compared to uncoated HSS
• Centercutting geometry allows direct plunge entry without a pre-drilled hole
• Straight cylindrical shank with Weldon flat for positive seating in end mill holders

Compatibility

Designed for use with 1/2 inch end mill holders, collet chucks, or Weldon-style tool holders on manual knee mills and CNC machining centers. Suitable for cutting cast iron, non-ferrous metals, and steel as noted in the Cleveland HG-4C series specifications.

Installation Notes

Installation should be performed by a qualified machinist with the spindle fully powered down and the machine locked out before tool changes. Seat the Weldon flat against the set screw in the tool holder to prevent axial pullout during cuts. Verify runout with a dial indicator before first use. Follow the machine tool manufacturer guidelines and applicable shop safety procedures for end mill selection, speed, and feed settings.