Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
16-40 mm Metric Tube OD Taper Gauge
A 76 x 90 x 6 mm pocket gauge with a tapered slot running from 14 mm to 44 mm. Push the end of a pipe, tube, hose or dowel into the slot and read its outside diameter from the tick where its centre stops. Ticks are every 2 mm from 16 to 40 mm, with long ticks at 20, 30 and 40, and their positions are corrected for the 11.3° taper. It covers the in-between metric sizes that hardware-store clamps skip, so you can buy or print the right saddle. A 6 mm hole lets you hang it.
Hose And Pipe Thread ID Gauge Card
A 150 x 60 x 3 mm gauge card that identifies a hose or pipe thread. It has four 60-60 mm thread combs: 11.5 TPI (2.21 mm, used by garden hose GHT and 1" NPT), 14 TPI (1.81 mm, 1/2" and 3/4" NPT/BSP), 18 TPI (1.41 mm, 1/4" and 3/8" NPT) and 1.5 mm metric (M22 pressure washer). Three U-notches check male thread OD: 21.6 mm for 1/2" NPT, 27.3 mm for 3/4" NPT/GHT and 33.7 mm for 1" NPT. With it you can tell which adapter to buy before you go to the hardware store.