Cleveland C33668 Square End Mill 7/16 in 2 Flute Hss Tin

Product Description

The CLEVELAND C33668 is a double-end, two-flute square end mill designed for precision milling in ferrous and non-ferrous materials. Ground from high speed steel (HSS) and finished with a titanium nitride (TiN) coating, the C33668 delivers extended tool life in production and job-shop environments. The cutting diameter is 0.4375 inches with a 0.8125-inch length of cut, a 0.5-inch straight-cylindrical shank with Weldon flat, and a 4.125-inch overall length. The 30-degree helix spiral flute geometry promotes chip evacuation and helps reduce heat buildup at the cutting edge. This tool is centercutting, allowing direct plunge entry without a pre-drilled pilot hole.

The C33668 is suited for slot milling, peripheral milling, and profiling operations on cast iron, steel, and non-ferrous metals. Its double-end design provides two usable cutting ends, reducing per-edge tooling cost in repetitive production runs. The right-hand cut, right-hand flute configuration is the standard orientation for conventional vertical mills, CNC machining centers, and manual knee mills. Series HD-2 geometry targets general-purpose applications where consistent finish and dimensional accuracy are required.

Key Features

• Double-end design delivers two cutting ends per tool for extended service life
• TiN coating increases surface hardness and reduces friction at the cutting edge
• Centercutting geometry allows direct plunge milling without pre-drilling
• 30-degree helix angle promotes efficient chip evacuation
• Straight-cylindrical shank with Weldon flat for positive tool holding in set-screw holders
• Right-hand cut and right-hand flute — standard orientation for most milling setups

Compatibility

Designed for use in 0.5-inch collets, milling chucks, and Weldon-flat end mill holders. Primary workpiece materials listed by the manufacturer are cast iron, non-ferrous metals, and steel (material codes K, N, and P).

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully powered down and locked before changing tooling. Seat the shank fully into the holder and torque the Weldon flat set screw according to the tool holder manufacturer specification. Verify runout with a dial indicator before cutting to protect the tool and workpiece.