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Cleveland C75108 4-flute HSS square end mill 20mm diameter uncoated finish

Cleveland

Cleveland C75108 4-Flute HSS Square End Mill 20mm

SKU CH-5BAT-J843R

A 20 mm high-speed steel square end mill with four flutes, centre-cutting geometry, 47.63 mm length of cut, 101.6 mm overall length and a 15.88 mm Weldon shank for secure milling operations

  • Product typeMilling
  • 20 mm diameter suits large milling tasks
  • Four-flute HSS design balances strength and finish
  • 63 mm cut length handles deep slots
  • Weldon flat shank locks securely in holders
  • 88 mm shank fits standard tool holders

20 mm High Speed Steel End Mill

The Cleveland C75108 is a 4-flute centre-cutting square end mill made from uncoated high speed steel. It suits manual and CNC milling operations where a general-purpose tool is required for slotting, profiling and face milling in ferrous and non-ferrous materials. The Weldon flat on the 15.88 mm shank provides secure clamping in standard end mill holders.

Upgrade from 2 or 3-flute cutters

Moving to four flutes increases chip evacuation capacity and allows higher feed rates when the machine rigidity and spindle power can support the extra cutting edges. The step up is worth it when surface finish and tool life on medium-finish passes matter more than maximum chip clearance in deep slots or heavy roughing cuts.

Straightforward holder installation

The Weldon flat engages a set-screw holder for quick changes without collets or shrink-fit equipment. Ensure the holder bore matches the 15.88 mm shank and that the set screw seats firmly on the flat; insufficient clamping torque or a worn holder bore are the most common causes of run-out and premature edge chipping.

How it compares

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

Price $43.99
Pricier than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeMilling

Questions about this item

What shank diameter does the Cleveland C75108 end mill need to fit my holder?

The tool has a 15.88 mm Weldon flat shank, so your holder must accept that exact diameter.

How do I install this 20 mm cutter without it slipping?

Tighten the holder's set screw directly onto the Weldon flat; the common mistake is clamping on the round section instead of the flat.

When will the 4-flute high-speed steel cutting edges need replacement?

Replace the end mill once the square corners show visible wear or chipping; uncoated HSS dulls faster than coated tools, so inspect after each job.

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