RYOBI introduces the 18-Volt ONE+ PEX Crimp Ring Press Tool. With 320 crimps per charge (with the ONE+ P108 4.0 Ah LITHIUM+ Battery, not included) and an easy one-handed crimping operation, the Crimp Ring Press Tool eliminates user fatigue and allows you to get the job done faster. The crimp cycle takes less than 5 seconds with an LED light to indicate completion. The Crimp Ring Press Tool fits all PEX sizes from 3/8 in. to 1 in. The jaws of the tool fit a 1 in. ring, and die inserts for rings are included (3/8 insert not included) as well as a Go/No Go Gauge to ensure a proper crimp is achieved.