- The RIDGID® model HC300 Hole Cutting Tool is designed to cut holes up to 3 in (76 mm) diameter into steel pipe. The multiple hole size allows the use of fittings such as Mechanical T®, Vic-O-Let™, Weld-O-Let™ and others for branching unpressurized pipelines. An integral motor and gear reduction optimizes the performance and saw life. A single-feed handle and ON/OFF switch allows for easy operation. The Model HC300 offers great features that translate into unparalleled field and shop performance.