Ercolina EN180 Pipe and Tube Notcher Grinder with Variable Angle Grinding and Capacity to 4-1/2" Tube or 3" Pipe. Manufacturer: Ercolina Model: EN180 Ercolina's EN180 Pipe & Tube Notcher is ideal for hand railing, chassis and roll cages, fences and gates, furniture frames, marine rails and arches, tubing and plumbing for restaurant and dairy.