The RIDGID 975 Roll Groover acts as 2 tools in one. It can mount onto the 300 Power Drive for machine powered roll grooving but is also designed to manually roll groove in-place pipe. The 975 Combo Groover includes new, patented auto tracking technology for significantly easier grooving. Whether you're doing machine-powered or manual grooving, the Auto Tracking gauge keeps the pipe automatically engaged to the groover throughout the grooving process. The 975 also includes a permanently depth setting gauge for quicker, repeatable set-up. When manually roll grooving, the 975's 55% higher gear reduction means less hand force required versus competitive manual roll groovers. This is especially helpful for over-head roll grooving. A tough, ductile iron construction means the 975 can absorb jobsite abuse and provide accurate grooves time after time. A cast-in handle makes the 975 easily portable to and from the jobsite. Capacity: 1 �in � 6in Schedule 10 and Schedule 40 steel, aluminium, and PVC pipe.1 1/4in � 6in Schedule 10, 1 1/4in � 2in Schedule 40 stainless steel pipe, 11/2in � 3in Schedule 80 PVC pipe. With roll change, 2in � 8in copper tube (Type K, L, M, and DWV). Depth Adjustment: Adjusting screw and integral, index depth gauge. Actuation: Feed screw with 1/2in ratchet wrench (included), or any 15/16in hex wrench. Power Drive Mounting: RIDGID 300 Power Drive 38/57 RPM (reverse direction only).