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Cleveland C41681 two-flute HSS square end mill, uncoated finish

Cleveland

Cleveland C41681 2-Flute HSS Keyway Tolerance Square Single End Mill

SKU CH-5KCX-8D62C

A 2-flute high-speed steel end mill with keyway tolerance for precise square milling

  • Product typeMilling
  • Keyway tolerance for precise slot fits
  • 2-flute HSS construction handles general milling tasks
  • Center-cutting design allows plunge and slot cuts
  • Uncoated high-speed steel suits ferrous materials
  • Cleveland C41681 model built for workshop reliability

Cleveland HSS Keyway End Mill

The Cleveland C41681 is a two-flute high-speed steel keyway end mill with centre-cutting geometry for plunge milling. It serves machinists and maintenance teams cutting precise keyways in steel and other ferrous materials. The uncoated substrate keeps tool cost low while maintaining sharp edges for clean slot finishes.

Uncoated HSS substrate

The uncoated high-speed steel construction eliminates coating delamination risk and allows easy resharpening on standard grinders. Centre-cutting capability lets the tool start slots without pre-drilling, reducing cycle time on manual or CNC machines. No additional accessories or software are bundled with this cutting tool.

3/8 inch milling diameter

The 3/8 inch cutting diameter fixes the keyway width this mill can produce, so verify the required slot size before ordering. Builders needing wider or narrower keyways must select a different diameter cutter. The inch-based shank fits standard inch collets and holders used in North American shops.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 60% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeMilling

Questions about this item

How often will the high-speed steel flutes need resharpening when cutting keyways in steel?

Resharpening frequency depends on workpiece material, cutting speed and feed rate; the uncoated HSS flutes can be reground multiple times before replacement is needed.

What limits continuous cutting time before the tool overheats?

Heat buildup in the uncoated high-speed steel flutes is the first limit; reducing speed, using coolant or taking lighter cuts extends sustained operation.

How much noise and heat does the end mill generate during an all-day milling job?

Noise and heat come mainly from the machine spindle and chip evacuation; the tool itself runs warmer as flute engagement increases, so coolant helps manage both.

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