General Tools Slide Caliper #729, 16th and 32nd Graduation, 0 to 4-Inch Range, Inside and Outside Measurement Product Description General Tools 729 4-inch Slide Caliper delivers quick and accurate inside and outside diameter measurements. This slide caliper provides inside and outside readings in both etched and filled 16ths and 32nds graduations. A decimal equivalents chart on the caliper's back side is helpful in making measurement calculations. The durable polished stainless-steel construction is coupled with a compact design makes this caliper a great addition to any workbench or toolbox. From the Manufacturer This handy 4-inch slide caliper has a decimal equivalents table on back. It has a 4" capacity with graduations in 16ths and 32nds. Features VERSATILE: Quick and accurate inside and outside diameter measurements. RANGE: Measures from 0 in. to 4 in. SCALE: Etched and filled graduations every 16th and 32ND of an inch. DURABLE: Polished stainless steel finish. DECIMAL CONVERSION: Decimal equivalents chart on the caliper's back side is helpful in making measurement calculations. General Tools 4 inch slide calipers deliver quick and accurate inside and outside diameter measurements USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.