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Silver cylindrical end mill with flat tip and shank flat

Cleveland

Cleveland C39078 Square End Mill 1.25 in LOC .1875 in Dia

SKU CH-FDPP-6D3M4

High-speed steel square end mill with TiN coating, 0.1875 in diameter and 1.25 in length of cut

  • TypeMilling
  • High-speed steel construction resists wear during milling
  • Titanium nitride coating extends tool life in production
  • 25 in length of cut handles deep slots
  • .1875 in diameter suits precision profiling
  • 3/8 in Weldon flat shank locks securely in holders

Cleveland C39078 Square End Mill

The Cleveland C39078 is a high-speed steel square end mill designed for general-purpose milling operations. It suits machinists and maintenance technicians who need a reliable cutting tool for slotting or profiling tasks. The TiN coating enhances wear resistance across a range of ferrous and non-ferrous materials. This cutter is not for buyers who require coolant-through capability for deep-pocket evacuation.

Installation and Common Issues

The tool features a standard 3/8 in shank with a Weldon flat for secure clamping in a matching end mill holder. Ensure the set screw engages the flat fully to prevent the tool from pulling out under load. Vibration or chatter typically indicates excessive overhang or insufficient spindle rigidity for the 1.25 in length of cut. Improper feed rates will accelerate flank wear on the .1875 in diameter cutting edges.

Critical Specification

The decisive specification is the 0.1875 in cutting diameter paired with a 1.25 in length of cut. This ratio determines the maximum slot width and depth achievable in a single pass. Verify that your workpiece geometry and machine envelope accommodate this specific reach. The 3 1/16 in overall length defines the minimum clearance required from the spindle face.

Highlights

  • High-speed steel construction resists wear during milling
  • Titanium nitride coating extends tool life in production
  • 25 in length of cut handles deep slots
  • .1875 in diameter suits precision profiling
  • 3/8 in Weldon flat shank locks securely in holders

Specifications

BrandCLEVELAND
TypeMilling

Questions about this item

How do I verify the Cleveland C39078 end mill is cutting correctly after installation?

The cutter should produce a clean square-bottomed slot 1.25 in deep with a .1875 in diameter; chatter or a tapered bottom indicates incorrect speed or insufficient rigidity.

What comes in the box and what must I supply separately?

The package contains the single high-speed steel square end mill with TiN coating and Weldon flat; you must provide a 3/8 in Weldon-compatible holder, coolant if desired, and a machine spindle.

Which version of the Cleveland C39078 should I choose for my application?

The C39078 is offered in one specification only — .1875 in diameter, 1.25 in length of cut, 3 1/16 in overall length, 3/8 in shank — so select it when those exact dimensions match your milling requirement.

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