Measure threads for ALL cones, locknuts and axles.
Wheels Mfg part numbers printed on it for ordering convenience.
Laser etched, black anodized aluminum with stainless steel hardware
Holes provided to secure to bench
Part No: RULER

Measure OD and ID of cartridge bearings as well as outer diameter of loose ball bearings.
Easy to use- just place the cartridge bearing into the correct fitting OD slot, then do the same with the ID posts.
Easy to read lettering tells you exactly what bearing you have.
Laser etched, black anodized aluminum.
Holes provided to secure to bench
Part No: Ruler-Bear