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Pen Turning Calculators

Free pen turning calculators for blank sizing, bushing dimensions, mandrel specs, and lathe speed.
Essential tools for pen turners and woodworkers.

Pen Blank Size Calculator

Calculate pen blank dimensions for any kit. Get length, width, and grain direction for perfect pen turning blanks.

Pen Bushing Size Calculator

Find the correct bushing outer diameter for any pen kit. Match bushings to your pen hardware for a seamless finish.
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