CNC Programmers Toolbox

CNC Programmer's Toolbox is a set of practical, shop-ready calculators built for CNC programmers and machinists — no internet connection required. FEATURES: - Speeds & Feeds — quick RPM/IPM calculations with material-based starting points - Thread Milling — full helical G-code generator for internal and external threads, RH/LH, single- or multi-form tools, with cutter comp and G91 incremental options - G76 Threading Cycle — Fanuc-style two-block threading cycle calculator - Tapping — tap drill sizes and feed calculations - Countersink & Finishing calculators - Scallop Height — stepover/cusp height for flat, convex, and concave surfaces - Cycle Time estimation - Engraving — generates ready-to-run G-code with preview - Backplot / DXF — visualize and export toolpaths from pasted or uploaded G-code - G-Code Check — catches common syntax issues before you run a program - Deflection — tool deflection estimates based on stickout, diameter, and cutting forces Built by a working CNC programmer for everyday use on the shop floor. All calculations use inch units by default. This app does not collect, store, or transmit any personal data.