We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 20.0 mm four-flute ball nose end mill with helical flutes

M.A. Ford

M.A. Ford 14078740A 20.0mm 4 flute ball nose end mill

SKU CH-NNFE-3X30T

20.0 mm four-flute ball nose end mill for contour milling and finishing operations

  • 4-flute ball nose geometry for smooth contouring
  • 0 mm cutting diameter for wide profiling passes
  • TuffCut GP series built for general-purpose milling
  • New condition ensures full tool life from first cut
  • California Proposition 65 warning for regulated substances

M.A. Ford 20.0mm ball nose end mill

The M.A. Ford 14078740A is a solid-carbide rotary cutter with four flutes and a ball nose profile. It is intended for machinists and fabricators who need to produce contoured surfaces, radii or 3-D profiles in a range of workpiece materials. The Tuffcut GP designation indicates a general-purpose geometry suited to both roughing and finishing passes. This tool is not for operators who require a flat-end or corner-radius profile for square-shouldered pockets.

20.0mm cutting diameter

The single specification that determines fit is the 20.0mm cutting diameter, which must match the programmed tool path and the machine spindle capacity. A 4-flute configuration provides a balance of chip evacuation and surface finish for this diameter. Buyers whose tool holders or collets cannot accommodate a 20.0mm shank should select a different size.

Four-flute capacity for contouring

Four flutes allow higher feed rates than two-flute equivalents while still clearing chips in profiling operations. The ball nose geometry comfortably handles 3-D surfacing, fillets and full-radius slots in steel, cast iron and non-ferrous alloys. The tool reaches its limit in very deep cavities where flute length restricts reach or where a flat-bottom finish is required.

How it compares

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

Price $329.99
Pricier than about 91% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

How does the 20.0 mm diameter affect material removal in a milling machine?

The 20.0 mm cutting diameter removes a wide swath per pass, reducing cycle time on large contours and deep pockets when the spindle has enough torque.

What shank standard does the 14078740A use and what machine holders accept it?

The end mill uses a standard cylindrical shank matching its 20.0 mm diameter, so it fits ER collets, Weldon flats or shrink-fit holders sized for 20 mm tooling.

What clearance does the 20.0 mm ball nose need inside a workpiece cavity?

A 20.0 mm ball nose requires at least 20 mm of radial clearance and enough axial depth for the flute length to avoid holder interference.

More in Bits, Hole Saws & Accessory Kits

Similar items