2A HD PIPE CUTTEREXTRA LONG SHANK PROTECTS ADJUSTMENTS THREADS WHILE AN EXTRA-LARGE HANDLE IS PROVIDED FOR QUICK EASY ADJUSTMENT. CAN BE CONVERTED TO 3-WHEEL CUTTER BY REPLACING ROLLERS WITH CUTTER WHEEL. 2A AD 4S CAN BE ORDERED AS 3-WHEEL MODEL FOR USE IN AREAS WHERE A COMPLETE TURN IS NOT POSSIBLE.