Cleveland
Cleveland C39690 3-Flute HSS Center Cutting Square Single End Mill
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
- 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.
Highlights
- 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
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Milling |
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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