Highlights
Tap drill & % thread
The right drill and the thread % it gives, for cut taps, form taps and STI inserts.
Thread class check
2B / 3B minor diameter band, shown live in a hole cross-section.
Inch, metric & pipe
UNC, UNF, UNEF, ISO coarse and fine, NPT, BSPT and BSPP threads.
Speeds & feeds
Drill speeds and feeds for 13 work materials, from 1018 steel to Inconel 718.
Blind-hole depths
Tap Z and drill Z worked out from thread depth, tap chamfer and drill point.
Fanuc rigid tap code
Rigid tap and drill code, plus troubleshooting, with sources linked.
Who it’s for
Made for
CNC machinists who drill and tap holes and want a quick, sourced starting point at the machine.
The numbers are starting points only. Numbers come from published charts and toolmaker guides, with links.
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