HWG138 Tru Hone Honing Wheel Gauge

The HWG138 Honing Wheel Gauge measures the HW100, HW220, HW400 & HW600 Honing Wheels to gauge whether or not they are suitable for redressing. If the HWG138 Honing Wheel Gauge does not slide over the top edge of the honing wheels, they should be large enough to be redressed. Honing wheels are too small to be redressed if the HWG138 Honing Wheel Gauge slides over the top edge of the honing wheels. The shortest honing wheel radius must be 1 3/8" (3.5cm) or more.