4-Piece Cutter Set Drain Cleaner Plumbing Snake Tool Cable Auger Clog sewer pipe. The 4-Piece Plumbers Cutter Set offers an assortment of cutter tips designed to explore and break up stoppages in your drain. Attach to slotted end cables to clear a variety of tough clogs. These cutters are made of heavy-gauge, tempered steel. The set includes: straight boring head, spear-head blade, side cutter and grease cutter. Made of heavy-gauge tempered steel Cutters fit 5/16 - 1/2 in. slotted end cables Straight Boring Head: 3/4 in. x 4 in. for initial exploration of clog Spear Head: 1-1/2 in. x 2 in. for piercing clog Grease Cutter: 1-1/4 in. x 2 in. for grease blockages Side Cutter: 2 in. x 4 in. for finishing pipe cleaning