CNC Thread Drill Hole Calc

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Hyper-focused CNC drill calculator solves specific shop-floor problem with offline reliability and clean interface.

// ABOUT

Rivnut Hole Calculator is a focused CNC helper that delivers accurate tap drill sizes in seconds. Enter major diameter and pitch or TPI, choose your thread engagement, and get a clear drill recommendation with metric and imperial support. All calculations run offline for speed and reliability on the shop floor. Simple inputs, crisp results, and no clutter.

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