To use, slide the stop over the ruler end and tighten it at the desired position. The notched post at the tip of the brass adjustment screw allows even the thinnest rulers to be clamped securely; it will not mar the ruler edge. Repositioning is fast and easy. The stop's anodized
aluminum body is contoured to fit comfortably between thumb and forefinger, with raised ridges for a better grip.
Accommodates rulers from 1" to 1-1/8" wide and up to 0.05" thick, the typical dimensions of rulers in the 12" to 24" length range. At 1" wide by about 2-1/4" long (including the adjustment screw), this tool is as compact as it is useful.
Made in Canada.