Cleveland C33117 Square End Mill 25/64 in 4 Flute Hss Ticn

Product Description

The CLEVELAND C33117 is a double-end square end mill designed for general-purpose milling in ferrous and non-ferrous metals. Ground from high speed steel and finished with a titanium carbonitride (TiCN) coating, this tool runs in right-hand rotation with right-hand spiral flutes at a 30-degree helix angle. The centercutting geometry allows plunge entry as well as peripheral milling. With a 25/64-inch cutting diameter and 4 flutes, it delivers a balance of chip clearance and surface finish suitable for slotting, profiling, and pocketing operations. Machinists and tool-and-die professionals are the primary users of this type of end mill.

This end mill fits standard knee mills, CNC machining centers, and manual milling machines equipped with a 1/2-inch collet or end mill holder. The 1-inch length of cut accommodates moderate-depth passes, while the 4-1/2-inch overall length provides sufficient clearance in most vertical and horizontal setups. The double-end design extends tool life by offering two usable cutting ends before the tool is retired. It is suited to production and maintenance machining environments where consistent tolerances are required.

Key Features

• TiCN coating increases surface hardness and lubricity compared to uncoated HSS, extending tool life in abrasive cuts
• 30-degree helix angle promotes smooth chip evacuation and reduces chatter during peripheral milling
• Centercutting geometry enables direct plunge entry without pre-drilling
• Double-end design provides two cutting ends per tool, improving cost efficiency
• 4-flute configuration balances material removal rate with surface finish quality
• Series HD-4C construction with regular length-of-cut classification for standard milling applications

Compatibility

Designed for use in any milling machine or machining center equipped with a 1/2-inch collet, end mill holder, or ER-style chuck. Compatible with setups requiring a right-hand cut, right-hand flute end mill in the 25/64-inch diameter class.

Installation Notes

End mill installation and tool changes should be performed by a qualified machinist with the machine fully powered down and the spindle locked. Use a properly sized collet or end mill holder torqued to the machine manufacturer's specification — do not rely on visual seating alone. Inspect the shank for wear or fretting before mounting, and confirm runout with a dial indicator after clamping when tight tolerances are required. Follow applicable shop safety procedures and machine guarding requirements during all operations.