Detailed Product Description Pipe Cutter (1-1/8") Model: TC 118 1/8 to 1-1/8 tubing sizes. aluminum alloy or zinc alloy body for Comfort grip. Large adjusting knob with our larger,more ergonomic designs. For copper, aluminum, brass and thin-wall conduit up to 3/16 thickness. Cutting wheel is made from bearing tool steel for easy cutting. convenient fold-away reamer with dual edges.