Thread limits, tap drills and drill sizes, worked out from the standards. No sign-up, nothing to install, and every chart prints for the wall by the drill press.
Limits of size for the bolt and the nut, the tap drill and the measurement over wires. UNC, UNF and UNEF in classes 1A to 3B, and metric 6g, 6h and 6H.
The tap drill for every UNC, UNF and metric thread, with its decimal size and percent of thread, and close and free fit clearance holes.
Every number, letter and fractional drill to 2 in, in order, with decimal inches and millimetres. Find the closest drill to any size.
Made by Pylvos, job tracking for small machine shops. These tools, plus speeds and feeds, bar yield, bolt circles and more, are built into the app, next to your jobs, prints and certs.
Try the live demo →Pylvos is job tracking for small machine shops: a board everyone can see, prints and certs on every job, and these tools built in. Runs on a PC you already have. Free for up to 3 people.