
Engineers Tools
Nine workshop tools in one Android app.
Engineers Tools
GD&T and ISO GPS symbols in plain English.
Drawing Symbols explains the geometric tolerance symbols on a drawing in plain workshop English: what to make, and how to check it. Decode a whole feature control frame, with bonus tolerance and position checks. Offline, metric first with inch too, no ads and no account. Coming soon to Google Play.
A shop-floor guide in Forest Forge's own words. The drawing and the standard it names always win.
Want to know when it launches? Email forestforge.dev@gmail.com.



Nine workshop tools in one Android app.

Identify gears from teeth and OD, then cut the blank.

6000–6400 sizes and H7 seats.

BSP, NPT, JIC, ORFS, ORB and metric.

DIN, ANSI, BS 46 and Woodruff key seats.

ISO 286 hole and shaft limits.

Mass of plate, bar and section, with live scrap prices.

Bend, pattern, box, roll and develop.

Pitches, tap drills, compare and identify.

Starting amps, volts, wire and gas.

Ratios, belt lengths, centres and belt sections.

Chain sizes, sprocket PCD, links and centres.

Refractometer readings, mixing and top-ups.

Tightening torque and preload, metric and UNC/UNF.

HRC, HRB, HV, Brinell and Shore conversions.

Hardening and tempering for common steels.

Time jobs, cost them and quote, offline.

Sling angles, leg loads, WLL and shackles.

Measure a worn O-ring, find the size.

Leftover plate, bar and tube, and find a piece.

Offsets, mitres, copes and wrap templates.

Reverse rim and rim-and-face, with shims.

Guillotine force, punch tonnage and clearance.

Service log, hours, next due and reminders.

Measure a drawing at the machine when the office is out.

Gauge heights and slip gauge stacks for an angle.

Compression and extension spring rate and stress.

Ra, Rz, N grades, CLA and turned finish.

Morse, Jacobs, R8, 7:24 and metric tapers.

Throat, leg, weld metal and wire or rod.