These Petol Drill Pipe Tongs are designed for making up and breaking out drill pipe, casing, and hammer drills on light rigs and are OEM installed on many rigs. Handles range from 8" to 36" and range from 1" up to 14" pipe OD. Four different heads and various chains cover the size range. The heads and chains are sold separately. Adder links are available to create different chain lengths.