ChipLoad

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

surfacing bit profile illustrationHigh Country Tools RIP-4W-2.75

RIP-4W-2.75 - RIPPER 2-3/4" 4-Wing Surfacing Bit

Type: surfacing bit · Diameter: 2.75" · Flutes: 4 · Shank: 0.5"

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
Acrylic / PVC (hard plastic)hobby-ultralight1000070.30.00176High Country Tools starting pointHigh Country Tools
Acrylic / PVC (hard plastic)hobby-light10000109.40.00273High Country Tools starting pointHigh Country Tools
Acrylic / PVC (hard plastic)hobby-rigid10000156.20.00391High Country Tools starting pointHigh Country Tools
Acrylic / PVC (hard plastic)business10000218.80.00547High Country Tools starting pointHigh Country Tools
Acrylic / PVC (hard plastic)industrial10000265.60.00664High Country Tools starting pointHigh Country Tools
Epoxy / resinhobby-ultralight1100049.50.00112High Country Tools starting pointHigh Country Tools
Epoxy / resinhobby-light1100077.00.00175High Country Tools starting pointHigh Country Tools
Epoxy / resinhobby-rigid11000110.00.0025High Country Tools starting pointHigh Country Tools
Epoxy / resinbusiness11000154.00.0035High Country Tools starting pointHigh Country Tools
Epoxy / resinindustrial11000187.00.00425High Country Tools starting pointHigh Country Tools
HDPE / UHMW / nylon (soft plastic)hobby-ultralight900070.90.00197High Country Tools starting pointHigh Country Tools
HDPE / UHMW / nylon (soft plastic)hobby-light9000110.20.00306High Country Tools starting pointHigh Country Tools
HDPE / UHMW / nylon (soft plastic)hobby-rigid9000157.50.00438High Country Tools starting pointHigh Country Tools
HDPE / UHMW / nylon (soft plastic)business9000220.50.00613High Country Tools starting pointHigh Country Tools
HDPE / UHMW / nylon (soft plastic)industrial9000267.80.00744High Country Tools starting pointHigh Country Tools
Hardwoodhobby-ultralight1200067.50.00141High Country Tools starting pointHigh Country Tools
Hardwoodhobby-light14000122.50.00219High Country Tools starting pointHigh Country Tools
Hardwoodhobby-rigid14000175.00.00313High Country Tools starting pointHigh Country Tools
Hardwoodbusiness14000245.00.00438High Country Tools starting pointHigh Country Tools
Hardwoodindustrial14000297.50.00531High Country Tools starting pointHigh Country Tools
Hardwood - Dense (maple, oak, ash)hobby-ultralight1200060.80.00127High Country Tools starting pointHigh Country Tools
Hardwood - Dense (maple, oak, ash)hobby-light14000110.20.00197High Country Tools starting pointHigh Country Tools
Hardwood - Dense (maple, oak, ash)hobby-rigid14000157.50.00281High Country Tools starting pointHigh Country Tools
Hardwood - Dense (maple, oak, ash)business14000220.50.00394High Country Tools starting pointHigh Country Tools
Hardwood - Dense (maple, oak, ash)industrial14000267.80.00478High Country Tools starting pointHigh Country Tools
MDF / particleboardhobby-ultralight1200074.30.00155High Country Tools starting pointHigh Country Tools
MDF / particleboardhobby-light13500129.90.00241High Country Tools starting pointHigh Country Tools
MDF / particleboardhobby-rigid13500185.60.00344High Country Tools starting pointHigh Country Tools
MDF / particleboardbusiness13500259.90.00481High Country Tools starting pointHigh Country Tools
MDF / particleboardindustrial13500315.60.00584High Country Tools starting pointHigh Country Tools
Plywood - Baltic birchhobby-ultralight1200064.10.00134High Country Tools starting pointHigh Country Tools
Plywood - Baltic birchhobby-light14000116.40.00208High Country Tools starting pointHigh Country Tools
Plywood - Baltic birchhobby-rigid14000166.20.00297High Country Tools starting pointHigh Country Tools
Plywood - Baltic birchbusiness14000232.70.00416High Country Tools starting pointHigh Country Tools
Plywood - Baltic birchindustrial14000282.60.00505High Country Tools starting pointHigh Country Tools
Plywood - Melamine / laminatehobby-ultralight1200057.40.0012High Country Tools starting pointHigh Country Tools
Plywood - Melamine / laminatehobby-light14000104.10.00186High Country Tools starting pointHigh Country Tools
Plywood - Melamine / laminatehobby-rigid14000148.80.00266High Country Tools starting pointHigh Country Tools
Plywood - Melamine / laminatebusiness14000208.20.00372High Country Tools starting pointHigh Country Tools
Plywood - Melamine / laminateindustrial14000252.90.00452High Country Tools starting pointHigh Country Tools
Softwood (pine, cedar, fir)hobby-ultralight1200077.60.00162High Country Tools starting pointHigh Country Tools
Softwood (pine, cedar, fir)hobby-light13500135.80.00252High Country Tools starting pointHigh Country Tools
Softwood (pine, cedar, fir)hobby-rigid13500194.10.00359High Country Tools starting pointHigh Country Tools
Softwood (pine, cedar, fir)business13500271.70.00503High Country Tools starting pointHigh Country Tools
Softwood (pine, cedar, fir)industrial13500329.90.00611High Country Tools starting pointHigh Country Tools

Retrieved 2026-10-16. Get the tool file from the maker: High Country Tools downloads

Weekly "what changed" email: coming soon

We'll email you when a maker updates their feeds and speeds.