ChipLoad

downcut end mill profile illustrationAmana Tool 46203 46204 46420 46423 46439 46445

2-flute downcut spiral (3/8") (Amana solid carbide spiral plunge chart)

Type: downcut end mill · Diameter: 0.375" · Flutes: 2

Starting points only, sourced from the manufacturers' own published data. Every machine differs: test in scrap, tune by ear. Neither ChipLoad nor the manufacturers are responsible for broken tools.

Published values, summarized per material and machine class. For the full CAM library (plunge, depth, stepover), download it from the manufacturer.

MaterialMachine classRPMFeed IPMChip load (in)NoteSource
MDF / Laminateindustrial18000390.00.0108Amana spiral plunge chart at 18,000 RPM, depth of cut 1xD (reduce chip load 25% at 2xD, 50% at 3xD). Ramp-down rate as published. ✓ Cross-checkedAmana Tool
Wood / Plywoodindustrial18000230.00.0064Amana spiral plunge chart at 18,000 RPM, depth of cut 1xD (reduce chip load 25% at 2xD, 50% at 3xD). Ramp-down rate as published. ⚠ Outlier: ours 0.0064" vs median 0.0165" of 3 other manufacturer(s): Freud, High Country Tools, Vortex (-61%)Amana Tool

Retrieved 2026-10-19. Get the tool file from the manufacturer: Amana Tool downloads