Cleveland
Cleveland C33266 4-Flute HSS Center Cutting Square Single End Mill
A 4-flute high-speed steel end mill with TiCN coating, 0.53125 in diameter and 1.375 in length of cut for center cutting operations
- TypeMilling
- 4-flute HSS design enables efficient material removal
- Center-cutting geometry allows plunge and profile milling
- TiCN coating increases wear resistance and tool life
- Weldon flat shank provides secure toolholder grip
- 375 in length of cut suits medium-depth operations
Cleveland C33266 4-Flute HSS End Mill
The Cleveland C33266 is a square single end mill designed for general milling operations. It features a 0.53125 inch milling diameter and a 1/2 inch shank with a Weldon flat for secure tool holding. This high-speed steel cutter suits machinists and maintenance technicians performing slotting or profiling tasks in ferrous and non-ferrous materials. The TiCN coating adds surface hardness for extended tool life.
Sustained cutting performance with TiCN coating
The TiCN coating provides increased hardness and heat resistance compared to uncoated tools, helping the cutter maintain edge integrity during prolonged milling cycles. High-speed steel construction offers toughness that resists chipping when engagement varies or when cutting through scale. The 4-flute geometry promotes stable chip evacuation at consistent feed rates, reducing vibration during extended passes. The non-coolant-through design relies on external flood or mist cooling for thermal management.
Installation notes and common issues
The Weldon flat shank locks into standard end mill holders with a set screw, providing a rigid connection that prevents pull-out during heavy cuts. Ensure the holder is clean and the set screw engages the flat fully to avoid runout. The 1.375 inch length of cut and 3 3/8 inch overall length require adequate machine clearance for deep pockets. Improper clamping or insufficient coolant flow are the primary causes of premature wear or tool breakage.
Highlights
- 4-flute HSS design enables efficient material removal
- Center-cutting geometry allows plunge and profile milling
- TiCN coating increases wear resistance and tool life
- Weldon flat shank provides secure toolholder grip
- 375 in length of cut suits medium-depth operations
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Milling |
Questions about this item
How much heat does the 0.53125 in diameter cutter generate during extended milling runs?
High-speed steel with TiCN coating reduces friction, helping the 1.375 in length of cut stay cooler during long sessions.
What tool holder does the 1/2 in Weldon flat shank require?
A standard Weldon-compatible end-mill holder with a set-screw that locks onto the flat is needed.
Will this 4-flute square end mill work on a manual Bridgeport knee mill?
Yes, the 1/2 in shank and 3 3/8 in overall length fit common manual milling machines.
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