CNC Tools is an all-in-one calculator & reference toolkit for CNC machining, programming, and shop-floor planning. Get fast, practical calculations for milling, turning, drilling, inspection, and production efficiency—right from your phone.
✅ What you can do
Cutting Parameters
Spindle Speed (RPM) Calculator
Cutting Speed (Vc) Calculator
Feed Rate Calculator (CNC)
Chip Load (fz) Calculator
Depth of Cut (DOC) Calculator
Material Removal Rate (MRR) Calculator
Surface Finish Estimator (Ra)
Tool Life Estimator (Taylor’s Equation)
Horsepower / Power Requirement Calculator
Torque Calculator (CNC)
Turning & Lathe Tools
Turning Speed & Feed Calculator
Thread Cutting Calculator (Lathe)
Taper Turning Calculator (Lathe)
Boring Bar Deflection Estimator
Parting-Off Speed Calculator
Milling & Drilling
End Mill Selection Tool
Slot Milling Parameters Calculator
Face Milling Calculator
Drilling Speed & Feed Calculator
Peck Drilling Calculator
Geometry & Programming Helpers
Bolt Circle (PCD) Calculator
Hole Pattern Generator (XY + G-code)
Arc Radius & Center Calculator
Chamfer & Fillet Calculator
Tool Path Length Estimator (Lines + Arcs + Patterns)
Cycle Time Estimator (CNC)
Materials, QC & Metrology
Hardness Conversion (HB ↔ HRC ↔ HV)
Thermal Expansion Calculator
Material Weight Calculator
Tolerance Calculator (CNC)
Fits & Clearances Calculator (CNC)
Measurement Uncertainty Estimator (CNC / QC)
Production, Cost & Efficiency
Job Cost Estimator (CNC)
Cycle Time vs Cost Analyzer (CNC)
Machine Utilization Calculator (CNC)
OEE (Overall Equipment Effectiveness) Calculator
🔓 Unlocking tools (In-App Purchase)
CNC Tools includes free tools to get started.
You can unlock all remaining premium tools with a one-time purchase inside the app (lifetime access). A Restore Purchase option is available for users who reinstall or change devices.
👷 Who it’s for
CNC operators, machinists, programmers
Production engineers & shop supervisors
Students learning machining and manufacturing
QC/inspection teams and metrology users
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