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Silver cylindrical HSS end mill with three flutes and TiN coating

Cleveland

Cleveland C39690 3-Flute HSS Center Cutting Square Single End Mill

SKU CH-WRZS-8TM9P

Three-flute high-speed steel square end mill with TiN coating, 1.875 in length of cut and 3/4 in Weldon shank for centre-cutting milling operations

  • Product typeMilling
  • 3-flute design improves chip clearance in slots
  • Center-cutting geometry allows plunge cuts without pre-drilling
  • High-speed steel body resists wear in general-purpose milling
  • TiN coating reduces friction and extends tool life
  • Weldon flat shank prevents slippage in standard holders

1-Inch HSS End Mill

The Cleveland C39690 is a single-end square mill with a 1-inch cutting diameter and three flutes. It is made from high-speed steel with a titanium nitride coating for extended tool life. The centre-cutting design allows plunging and slotting operations in a single tool.

For General-Purpose Milling

This cutter suits machinists who need a coated HSS tool for profiling, slotting and pocketing in steel, cast iron and non-ferrous metals. The Weldon flat shank fits standard 3/4-inch holders without additional adapters. Shops requiring carbide wear resistance or higher flute counts for finishing passes should select a different tool.

1.875-Inch Cut Length

The 1.875-inch length of cut provides reach for medium-depth pockets and side milling in one pass. The 4-1/8-inch overall length keeps the tool rigid in standard toolholders. Deeper cavities or high-volume production runs will exceed the practical depth and wear limits of this HSS geometry.

How it compares

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

Price $78.99
Pricier than about 78% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeMilling

Questions about this item

What milling machine spindle or collet size is needed to hold the 3/4 in shank on this Cleveland C39690 end mill?

A 3/4 in Weldon flat holder or compatible collet is required to secure the shank during operation.

Can this 1 in diameter end mill be used with a smaller capacity mill that only accepts 1/2 in shanks?

No, the 3/4 in shank will not fit a 1/2 in holder; a machine with a 3/4 in spindle or adapter is necessary.

How can I confirm the tool is cutting correctly after installation?

Verify a flat-bottomed slot with clean edges and the expected 1.875 in depth of cut in the workpiece.

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