OFFSET: Conduit Bending

You are on a lift with a stick of three-quarter EMT and a bender, and the phone in your pocket does not know what a shrink is. OFFSET tells you where to put your marks — and then watches you make the bend. Give it the height you need and the angle you want. It gives you back the distance between marks, the shrink, and how far from the end of the pipe the first mark goes — in inches and sixteenths, the way it is written on the pipe, not as a decimal you have to convert on a ladder. LAY THE PHONE ON THE PIPE Every other bending app hands you a number and goes back in your pocket, which leaves the part where mistakes actually happen unwatched. OFFSET reads the angle off the phone's own tilt sensor. Rest it on the straight leg, tap Zero, and pull — a tone climbs as you close on the angle and holds steady when you are on it, because at that moment both hands are on the handle and a screen is…