Carbide end mills (often called tungsten steel mills) are the workhorse of milling. Choosing the right type, flute count, coating and grade directly determines efficiency, surface quality and tool life. Below using the KEENCUTEER 50°/60°/62° carbide mill system.
Flat (2/4-flute) for planes and side milling; ball-nose for 3D/contour and molds; corner-radius (bull) for shoulder/heat-resistant steps; sharp high-rake for aluminum. KEENCUTEER covers general and mirror-finish mills.
Roughing: fewer flutes (2–3) for chip space and depth; finishing/alloy: more flutes (4+) for efficiency and finish; thin/soft parts: fewer flutes to avoid chatter.
General steel: TiAlN for heat resistance; stainless: anti-adhesion coating; aluminum: uncoated/diamond-like sharp grades. Carbide (tungsten) is WC-Co; grade + coating set wear/heat resistance.
Aluminum mirror: sharp grade + small-feed finish + high rpm + ample coolant reaches mirror surface. KEENCUTEER offers 50°/60°/62° carbide mills and mirror solutions.
How to choose a carbide (tungsten) end mill?
Flat (2/4-flute) for planes/side; ball-nose for contours/molds; bull-nose for shoulders; sharp high-rake for aluminum. KEENCUTEER 50°/60°/62° mills cover general and mirror finishing.
Difference between carbide and tungsten tools?
Carbide (colloquially tungsten steel) is WC-Co; grade and coating (e.g. TiAlN) determine heat/wear resistance. KEENCUTEER matches grades to material.
How to mill aluminum to mirror finish?
Sharp grade, small-feed finish, high rpm and ample coolant achieve mirror surface.
How to read milling insert codes (APKT/RPKT)?
APKT 85° rhombus for face/shoulder milling, RPKT round for ramping, APMT 88° for high-feed. KEENCUTEER offers full ranges.
Custom non-standard end mills?
Yes. KEENCUTEER customizes by drawing, material and machine parameters (special holders, form tools, PCD/CBN), with parameter optimization and controllable lead time.
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