Hole sizes for the machine making the part

Tap drill, clearance hole & fit charts

Every catalog number, one table per chart - tap drills, clearance holes, heat-set pockets and bearing fits, in metric and imperial. Each chart carries notes on the sizes it covers, under the table.

These are standard reference numbers. Every machine prints and cuts a little differently - set a hole to 5.00 mm and it might land at 4.95 mm. Calibrate your machine in the FitCheck app and the clearance and pocket diameters here shift to match it. It's free in your browser, and the phone apps also work offline.
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Metric and imperial clearances follow published mechanical-engineering references · heat-set pockets per CNC Kitchen · bearing housing seats follow published fit tables. Reference only - verify before you cut.