The RIDGID 300 Power Drive features speed chuck, reversible 1/2 HP universal motor, capacity: 1/8″-2″ (3mm-50mm) pipe, 2 1/4″-4″ with 141 and 4″-6″ with 161 geared threaders; 1/4″-2″ (6mm-50mm) rod; it’s also equipped with a recessed On/Off/Reverse switch, can be converted into a portable threading machine and it’s ideal for use with RIDGID roll groovers.