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Silver 20.0 mm 4-flute ball nose end mill with stub shank

M.A. Ford

M.A. Ford 16578740A 4 Flute Ball Nose End Mill Stub 20.0mm

SKU CH-11GV-ZTHYK

A four-flute ball-nose end mill with a 20.0 mm cutting diameter for contour milling

  • 4-flute design increases material removal rate for faster profiling cuts
  • Ball nose geometry produces smooth 3-D contours without sharp corner steps
  • Stub length reduces deflection for tighter tolerances on deep pockets
  • 0 mm cutting diameter handles medium-to-large features in a single pass
  • TuffCut GP coating extends tool life in steel and cast iron alloys

M.A. Ford 4 Flute Ball Nose End Mill

This M.A. Ford end mill is a stub-length, 4-flute ball nose cutter built for profiling and contouring in milling machines. The 20.0 mm cutting diameter and TuffCut GP geometry suit general-purpose metal removal where rigidity and reach are balanced. It is sold new and ships directly from the manufacturer.

Fits CNC and manual milling setups

Machinists needing a compact ball nose tool for 3D profiling in steel, cast iron or non-ferrous alloys will find this cutter appropriate. Buyers who require longer flute length, a different shank standard or a specialised coating for high-temperature alloys should look at other options.

20.0 mm cutting diameter

The single specification that decides fit is the 20.0 mm cutting diameter; it must match the programmed tool path and machine capacity. Verify this dimension against your CAM setup before ordering. California Proposition 65 warnings apply to this product.

How it compares

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

Price $245.99
Pricier than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

Does the 16578740 end mill generate noticeable heat or vibration during extended machining runs?

The solid-carbide TuffCut GP body with four flutes distributes cutting forces evenly, keeping vibration low and heat buildup manageable during long sessions.

What shank size must my tool holder accept for the 20.0 mm ball-nose cutter to seat properly?

The cutter uses a standard 20.0 mm shank, so your collet, shrink-fit holder or end-mill adapter must match that diameter.

Will the 16578740 cutter fit in an older CNC spindle that only takes imperial-collet tooling?

No — the 20.0 mm metric shank requires a metric collet or holder; an imperial-collet spindle cannot clamp it securely.

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