The RIDGID Model 918 Hydraulic Roll Groover features a powerful 15-ton hydraulic ram in a compact, easy to transport unit. With one man set-up and operation, the 918 is the ideal groover for job site requirements. The 918 mounts quickly to RIDGID 300 power drive, 535, 1822, or 1224 Threading Machines. Designed to provide maximum efficiency, the 918 is capable of grooving up to 12" Schedule 10 and 8" Schedule 40 standard wall pipes. Roll Set changeout is accomplished in seconds. Compact lightweight design allows for easy transport Extensive grooving capacity for a wide range of applications Rugged, durable housing enables unit to withstand harsh use Two-stage pump plus 15ton ram permit quick and smooth operation Quick easy set-up Easy rollset changeout Specifically designed groove and drive rolls product consistent, accurate grooves throughout the capacity range