Every tapped hole now drills the tap maker's tabulated drill. ISO metric takes Yamawa YEU23's
drill size column for cutting taps (printed p.704, M coarse; pp.704 to 706, MF fine): M8 drills
6.8 mm and M12 10.3 mm, where the major less the pitch gave 6.75 and 10.25. A custom metric size
the table lacks keeps the major less the pitch. UNC/UNF (Guhring), G, Rp, Rc and NPT (Yamawa)
were tabulated already. The Thread command's suggested hole for a metric size follows.
The Hole dialog's Tap drill diameter is now a field, the tap maker's drill by default, and the
command's `diameter` with a thread is checked the same way: a drill is accepted from the
internal thread's standard minor diameter (or the tap maker's drill where that lies below it:
Rp, Rc, NPT) to 5% over the tap maker's drill. Outside that the command names the range and
why. The field's tooltip gives the drill, the minor diameter and the range. Presets keep a
chosen drill.
A saved design keeps the diameter it stored, so it builds as before, and editing such a hole
keeps its drill: no preference and no format change. Scripts that give a thread without a
diameter drill the new default; ladder 05/007, 11/003 and rig case threads/2115 follow
analytically, and their golden entries are re-measured from runs (tier 05 re-sorted by time).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LUXeKMoxpM7Vuv8Rb6E3K2
* claim: #2440
* feat: choose ISO metric tapped-hole sizes and derive the drill diameter
* fix: label the tap drill and hide the unused diameter editor
* test: cover tapped hole catalogue and drill sizing
* fix: omit coarse metric pitch from generated designations
* Keep custom tapped-hole nominal diameter and pitch editable
Preserve Custom as dialog state, derive the existing metric designation from numeric inputs, and refuse invalid drafts without applying the last valid size. Retain manual text editing, physical tap-drill geometry and saved-design compatibility.
* fix(i18n): register custom tapped hole labels in source catalogs
* Adapt tapped-hole Custom fields to the current form kit
* fix: preserve tapped designation focus with dynamic custom rows
jyviko