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Cleveland HSS end mill, 11/16 inch diameter, gold TiN coating, Weldon flat shank

Cleveland

Cleveland C33781 HSS End Mill 11/16 in D 1.3125 in Cut L

SKU CH-WTFQ-J3TSX

HSS square end mill with TiN coating, 0.6875 in diameter, 1.3125 in cut length and 1/2 in Weldon shank for general milling

  • TypeMilling
  • High-speed steel construction resists wear during milling
  • 11/16 in diameter suits medium-sized slot work
  • 3125 in cut length allows deeper passes
  • TiN coating reduces friction and extends tool life
  • Weldon flat shank locks securely in standard holders

Cleveland HSS End Mill 11/16 in

This Cleveland C33781 end mill is a square-end milling cutter made from high-speed steel with a titanium nitride coating. It suits machinists and maintenance teams cutting slots, profiles or faces in steel, cast iron and non-ferrous alloys. The 1/2 in Weldon flat shank fits standard tool holders on knee mills and CNC machining centres.

TiN coating and Weldon shank

The titanium nitride layer reduces friction and raises surface hardness, letting the tool run at higher speeds while resisting built-up edge on sticky materials. The Weldon flat locks securely into a set-screw holder, preventing pull-out during heavy axial loads and simplifying tool changes without collets or ER nuts.

Straightforward holder mounting

Insert the 1/2 in shank until the flat seats against the holder’s set screw and tighten; no torque wrench or special fixture is required. Problems arise if the flat is misaligned with the screw, causing run-out, or if the 1.3125 in length of cut exceeds the workpiece depth, leading to chatter or tool deflection.

Highlights

  • High-speed steel construction resists wear during milling
  • 11/16 in diameter suits medium-sized slot work
  • 3125 in cut length allows deeper passes
  • TiN coating reduces friction and extends tool life
  • Weldon flat shank locks securely in standard holders

Specifications

BrandCLEVELAND
TypeMilling

Questions about this item

Will the 1/2 in Weldon flat shank need any special holder maintenance over time?

The Weldon flat only needs a standard set-screw holder; keep the flat clean and lightly oiled to prevent corrosion and ensure the screw seats squarely every change.

What limits continuous cutting with the 1.3125 in length of cut on this HSS tool?

High-speed steel softens as temperature rises, so the 1.3125 in flute length will reach its heat limit before carbide would, requiring slower feeds or frequent coolant breaks.

How much heat and noise should I expect when running this 0.6875 in end mill all day?

HSS generates moderate heat during extended cuts; the TiN coating reduces friction slightly, but expect noticeable warmth and typical milling-machine spindle noise rather than silent operation.

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