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Small silver cylindrical HSS end mill with Weldon flat shank and TiCN coating

Cleveland

Cleveland C39617 HSS End Mill .125 in D .375 in Cut L

SKU CH-DSRX-T6341

A high-speed steel square end mill with TiCN coating, .125 in diameter and .375 in cut length for milling operations

  • TypeMilling
  • High-speed steel construction resists wear during milling
  • TiCN coating reduces friction and extends tool life
  • .125 in cutting diameter suits precise slot work
  • .375 in length of cut handles shallow pockets
  • Weldon flat shank prevents slippage in holders

Tool identity and target use

The Cleveland C39617 is a square end mill made from high speed steel with a TiCN coating. It serves machinists and maintenance technicians who need a reliable general-purpose milling cutter for ferrous and non-ferrous materials.

Heat wear and power draw

The TiCN coating reduces friction and heat buildup during cutting passes, extending edge life under normal feed rates. High speed steel construction absorbs vibration without chipping, keeping spindle load steady on manual or CNC knee mills.

Fit in the shop

A 3/8 in Weldon flat shank locks directly into standard end mill holders and collets, so no adapter sleeves are required. The 3 1/16 in overall length clears most vise setups while the .125 in diameter and .375 in length of cut suit shallow slots and profile work.

Highlights

  • High-speed steel construction resists wear during milling
  • TiCN coating reduces friction and extends tool life
  • .125 in cutting diameter suits precise slot work
  • .375 in length of cut handles shallow pockets
  • Weldon flat shank prevents slippage in holders

Specifications

BrandCLEVELAND
TypeMilling

Questions about this item

How do I install the 3/8 in Weldon Flat shank end mill in my tool holder, and what step is commonly missed?

Insert the .375 in shank fully into a Weldon-compatible holder and tighten the set screw onto the flat; the step often missed is confirming the flat seats squarely before locking.

What maintenance or replacement will the C39617 HSS end mill need later?

The high-speed steel cutting edges will dull with use; plan to resharpen or replace the tool when flank wear reaches the .125 in diameter tolerance.

What limit appears first during sustained milling with this .125 in diameter cutter?

The small .125 in diameter restricts chip evacuation, so heat buildup and chip packing become the limiting factor before tool deflection.

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