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Permanently mount these rulers to a machine or workbench.
Use to find diameters and centers.
Permanently mount these rulers on machines, tanks, and walls to measure heights and depths.
These extra-thick rulers have a polycarbonate coating that resists wear from traffic and chemicals.
The graduations on these rulers are half the actual length of the object you are measuring.
Screw these dispensers to a workbench, cabinet, or table.
Use the included C-clamp to attach these dispensers to any surface up to 2-1/4" thick.