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Silver cylindrical 3-flute HSS end mill with Weldon flat shank

Cleveland

Cleveland C39651 3-Flute HSS Center Cutting Square Single End Mill pneumatic accessory

SKU CH-V3M3-WSY86

A 3-flute high-speed steel square end mill with a .5 in diameter and 1.25 in length of cut for center cutting operations

  • Product typeMilling
  • 3-flute design improves chip evacuation during milling
  • High-speed steel construction resists wear in demanding cuts
  • Center-cutting geometry enables plunge and slot operations
  • Weldon flat shank ensures secure tool-holder grip
  • 25 in length of cut suits deep pocket work

Cleveland C39651 End Mill — Application

The Cleveland C39651 is a 3-flute high-speed steel square end mill designed for general-purpose milling. It suits machinists and maintenance teams cutting slots, pockets and profiles in steel, cast iron and non-ferrous metals. The centre-cutting geometry allows plunge entry into the workpiece. Buyers needing extended reach, coated tooling or carbide substrate should select a different tool.

Cleveland C39651 End Mill — Fitment Check

Verify that your tool holder accepts a 1/2 in Weldon flat shank and that the machine spindle provides adequate rigidity for a 3 1/4 in overall length. Confirm the 1.25 in length of cut matches the required depth of cut for your operation. Ensure the .5 in milling diameter suits the feature size and that your coolant strategy accommodates a non-coolant-through design.

Cleveland C39651 End Mill — Operation

Uncoated high-speed steel generates moderate heat during cutting, so appropriate cutting fluid or air blast is recommended to manage temperature and chip evacuation. The 3-flute design typically produces a smoother finish and lower vibration than 2-flute alternatives at comparable feed rates. Power draw correlates directly with material hardness, width of cut and chosen speeds and feeds.

How it compares

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

Price $39.99
Pricier than about 61% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeMilling

Questions about this item

Does the Cleveland C39651 end mill come with any holders or collets, or must those be purchased separately?

The Cleveland C39651 is supplied as the cutting tool only. It features a Weldon flat on the 1/2 in shank for secure clamping, but holders, collets or set screws are not included and must be sourced separately.

When should I choose this 3-flute HSS square end mill over a 2-flute or 4-flute version?

Choose this 3-flute HSS square end mill when you need a balance of chip clearance and finish quality in slotting or profiling. Three flutes evacuate chips better than four in deeper slots while leaving a smoother surface than a two-flute tool in the same cut.

What does the 1.25 in length of cut mean for the depth I can machine in one pass?

The 1.25 in length of cut is the maximum axial engagement the flutes can handle. You can plunge or profile up to that depth in a single pass, provided your machine rigidity and coolant allow it; deeper cuts require multiple passes.

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