About this app
▶ Every shop calc in one app. Get speeds and feeds, tap drill sizes and bolt-circle coordinates without flipping through charts or paying for a locked-up tool. ▶ Speeds & feeds, both ways. Pick a material and enter tool diameter and flute count for RPM, cutting speed and feed rate — or work it backward from RPM. Switch imperial and metric anytime. ▶ Tap drill in seconds. Choose a metric or unified thread and get the tap drill size with the nearest standard drill, plus a thread-percentage slider for tight or loose fits. ▶ Bolt circle coordinates. Enter hole count, diameter and start angle for an X/Y table you can copy row by row straight into the control, with a quick preview. ▶ Reference built in: material speed presets, a number/letter/fraction/metric drill chart, point-depth and surface-finish cards. Recommended speeds are a starting point, not a final spec. Tune to your machine, tooling and material, and follow your tooling maker's data.
Latest release
What’s New
Alerts now arrive properly on Android instead of landing silently, and the app no longer interrupts you in the middle of what you came to do.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 19, 2026 · 5:55 PM Free
Screenshots
