Clean, square cuts are easily made on copper, brass, aluminum and thin-wall conduit. Now includes X-CEL Knob for quicker cutting. Nos. 10, 15 and 20 feature a convenient fold-away reamer. No. 30 is rated for larger diameter steel and stainless steel tubing. No. 65S is especially designed for stainless steel tubing. Includes six individual bearings and cutter wheel to make stainless cutting easier. X-CEL Knob – cut tubing more quickly and easily with our larger, more ergonomic designs. X-CEL Wheel Pin – change your cutter wheel quickly using our new ball detent design…no tool needed…no lost clips! Spare cutter wheels included for maximum uptime.