ChipLoad

Bits · Materials · Machines · Calculator — Cross-brand CNC router feeds & speeds, every number linked to its maker's source.

surfacing bit profile illustrationSienci Labs

22mm Surfacing Bit

Type: surfacing bit · Diameter: 0.8661" · Flutes: 2 · Shank: 0.25"

Starting points only, copied from the makers' own published data. Every machine differs: test in scrap, tune by ear. Neither ChipLoad nor the makers 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 maker.

MaterialMachine classRPMFeed IPMChip load (in)NoteSource
Hardwoodhobby-light1700081.50.0024 [Tested on Sienci LongMill MK2; converted from mm by ChipLoad]Sienci Labs
Softwoodhobby-light1700081.50.0024 [Tested on Sienci LongMill MK2; converted from mm by ChipLoad]Sienci Labs

Retrieved 2026-10-16. Get the tool file from the maker: Sienci Labs downloads

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