Hook rules are ranked high on our "ticks of the trade" list. With this quality ruler you will be able to measure quickly and accurately from the edge of any object. No more guess work or inaccurate measurements! Simple, effective and affordable. Stainless steel with etched graduations in 1/64", 1/32", 1/16" and 1/8" scales. Non-reflective satin finish contrasts with black markings for easy reading. Available in 6" and 12" sizes.