Cleveland C33235 Square End Mill 1-3/8 in 4 Flute Hss Tin

Product Description

The CLEVELAND C33235 is a single-end square end mill designed for general-purpose milling in metal fabrication and machining environments. Built from high speed steel (HSS) and coated with titanium nitride (TiN), it delivers improved surface hardness and wear resistance over uncoated HSS tooling. The mill measures 1.375 inches in diameter with a 2-inch length of cut and a 4.5-inch overall length. The 1-inch shank diameter provides a secure grip in standard end mill holders and collet chucks. Four spiral flutes with a 30-degree helix angle promote efficient chip evacuation and smooth cutting action across a range of workpiece materials.

This end mill is suited for face milling, slotting, profiling, and peripheral milling operations on ferrous and non-ferrous metals. The center-cutting geometry allows for direct plunge entry, giving machinists flexibility in toolpath planning without requiring a pre-drilled starting hole. It is a regular-length tool in the HG-4C series, appropriate for use on manual knee mills and CNC machining centers in job shop and production environments.

Key Features

• 1.375-inch mill diameter with a 1-inch shank diameter for standard toolholding compatibility
• 2-inch length of cut accommodates moderate-depth milling passes
• TiN coating increases surface hardness and extends tool life compared to bare HSS
• 30-degree right-hand spiral flutes promote effective chip evacuation
• Center-cutting design enables direct plunge milling
• Single-end configuration; HG-4C regular-length series

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 1-inch straight-shank end mill holders, collet chucks, and shrink-fit toolholding systems used in manual and CNC milling applications.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Ensure the machine spindle is fully stopped and the tool is securely torqued in the holder before any cutting operation. Verify shank diameter matches the toolholder bore before seating. Follow applicable shop safety procedures and machine manufacturer guidelines for tool runout inspection and operating speed selection based on workpiece material and depth of cut.