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.
Screw-Tension Band Clamp 60-68 mm
A T-bolt style band clamp that draws down evenly on anything 60–68 mm OD (2" PVC at 60.3 mm, 63 mm PE pipe, 2.5" dust hose, pond and irrigation hose) using one M5 x 50 bolt and a captured M5 nut in a 5.7 mm across-flats hex pocket. The 14 mm wide, 2.8 mm thick band has a smooth 68 mm bore with no screw slots or sharp tail, so it spreads load without gouging silicone hose the way an oversized worm-drive clamp does; thickened 9 mm end bosses keep the clamping pressure even and the whole 81 x 74 x 14 mm part prints flat with the hoop load in the XY plane.