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Cutting Parameters

Chip Load Calculator for CNC Milling

Calculate chip load per tooth from feed rate, spindle RPM, and flute count. Use it to check whether a milling tool is cutting a real chip instead of rubbing or overloading the edge.

Input Parameters

Results

Chip Load (mm/tooth)
Chip Thickness (mm)
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Chip Load formula and how to use it

Chip load is one of the fastest ways to diagnose rubbing, chatter, premature wear, and overloaded carbide edges.

Frequently asked questions

What is chip load?

Chip load is the amount of material removed by each cutting edge on each spindle revolution, usually shown as mm/tooth or in/tooth.

Why is chip load important?

Too little chip load causes rubbing and heat. Too much chip load can chip the cutting edge or overload the spindle.

How do I increase chip load?

Increase feed rate, reduce RPM, or reduce flute count. Always stay within the tool maker and machine limits.

How to use this Chip Load calculator

Use this page to check whether your programmed feed rate gives each cutting edge a realistic chip thickness instead of rubbing or overloading the tool.

Common mistakes to avoid

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