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Feeds & Speeds Calculator
Decision Tools
Feeds & Speeds Calculator
Free engineering calculator - no signup, runs in your browser.
DEW Machine Shop Tools
Feeds & Speeds Calculator
Inputs
Material
Aluminum (general)
Brass / Bronze
Mild Steel (1018)
Alloy Steel (4140)
Stainless Steel (304)
Titanium
Plastic (Acetal/Nylon)
Tool Diameter (in)
Number of Flutes
Chip Load per Tooth (in)
Typical: 0.001"–0.006" depending on tool size & material
CALCULATE
Readout
SPINDLE SPEED
—
RPM
FEED RATE
—
IPM
SURFACE SPEED
—
SFM
Estimates based on standard machining handbook formulas. Verify against your tool manufacturer's recommendations before running.
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