Cleveland
Cleveland C32581 4-Flute Cobalt 8% Square End Mill pneumatic accessory
A 4-flute cobalt end mill with 0.25 in diameter and 0.625 in cut length for milling operations
- TypeMilling
- 4-flute design improves chip evacuation and finish
- 8% cobalt construction resists heat during heavy cuts
- TiN coating reduces friction and extends tool life
- 25 in diameter suits precision milling tasks
- Weldon flat shank prevents slippage in holders
Cleveland C32581 4-Flute Cobalt 8% Square End Mill
The Cleveland C32581 is a 4-flute cobalt 8% square end mill designed for general-purpose milling operations. It suits machinists and maintenance teams who need a reliable centre-cutting tool for slotting, profiling and plunge cuts in steel and alloy workpieces. The TiN coating adds wear resistance for longer tool life in production environments. This accessory fits standard Weldon flat holders on milling machines and CNC centres.
Build quality and day-to-day implications
The cutter body uses cobalt 8% high-speed steel with a titanium nitride surface treatment that resists heat and abrasion during extended cuts. A Weldon flat on the 3/8 in shank provides positive drive and prevents pull-out in heavy feed conditions. The non-coolant-through design means external flood or mist coolant must be directed at the cutting zone. Four flutes give a smooth finish while allowing adequate chip evacuation in most materials.
What this replaces and when the upgrade pays off
The C32581 replaces worn or lower-grade high-speed steel end mills that dull quickly in tougher alloys or higher-speed passes. Shops stepping up from uncoated 2-flute tools gain faster material removal and better surface finish without moving to solid carbide. The jump is worth it when cycle time matters and the machine rigidity supports the 0.625 in length of cut at full engagement.
Highlights
- 4-flute design improves chip evacuation and finish
- 8% cobalt construction resists heat during heavy cuts
- TiN coating reduces friction and extends tool life
- 25 in diameter suits precision milling tasks
- Weldon flat shank prevents slippage in holders
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Milling |
Questions about this item
What milling diameter does the 0.25 in end mill actually cut?
The cutter has a 0.25 in milling diameter, so it produces a 0.25 in wide slot or profile in a single pass.
What shank size and flat style does the tool use for holder fit?
It has a 3/8 in diameter shank with a Weldon flat for positive drive in standard end-mill holders.
How do you install the end mill so the flat seats correctly?
Insert the shank fully, rotate until the Weldon flat aligns with the holder's set screw, then tighten the screw firmly on the flat.
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