End Mills

6-Flute Square End Mill — High-Feed Finishing

Six flutes put more cutting edges into the work per revolution. Built for finishing passes where feed rate and surface quality both matter.

Material grade Sub-micron carbide, K30
Coating AlCrN
Flutes 6
Diameter range Ø6–20 mm
Helix angle 45°
Tolerance h6, ±0.005 mm
Shank h6 ground, HA
Application Finishing

Reply within 24 hours on business days · Samples available before volume · NDA on request

About this tool

When the roughing is done and the surface has to come out right the first time, six flutes give you the feed rate to finish quickly without pushing the chip load up. The stiffer core also holds the wall straighter on deep passes.

Where it works

Finishing passes in steel, cast iron and hardened steel up to 55 HRC. Best where the machine has the spindle speed to keep the chip load in range.

Cutting data — starting point

Starting values for a rigid setup with a good coolant supply. Treat them as a first trial, then adjust to the machine, the holder and the actual condition of the material.

Work material Cutting speed vc Feed Depth of cut
Carbon steel (P) 200–300 m/min 0.02–0.05 mm/tooth 0.3×D
Hardened steel 45–55 HRC (H) 90–140 m/min 0.01–0.025 mm/tooth 0.15×D
Cast iron (K) 180–260 m/min 0.02–0.04 mm/tooth 0.3×D

What you can specify

  • Diameter, corner radius and flute count ground to your drawing
  • Coating — AlCrN, AlTiN, TiAlN, DLC or uncoated, matched to the workpiece
  • Shank — h6 ground, HA / HB / whistle-notch
  • Laser-marked part number, or blank shanks for distributor stock

Not sure about the geometry? Send the drawing or a photo of the part. We recommend the profile, the coating and the starting cutting data — and quote from there.

Why it works

  • Six cutting edges raise the table feed at a given chip load
  • Strong core resists deflection on long finishing passes
  • 45° helix shears the chip for a cleaner wall finish
  • AlCrN coating for dry and near-dry machining
Related

Other tools in End Mills

View category

3-Flute Square End Mill — Aluminium

Polished three-flute geometry with a high helix, built for aluminium and non-ferrous work at high spindle speeds.

Ø3–16 mm · 3 · Uncoated / polished

Can't find the geometry you need?

Most of what we ship is ground to a drawing. Send yours — we quote within 24 hours.