This Ryobi CCG-1801M Caulking Gun is ideal for caulking applications over long periods of time. It has a variable speed adjustment lever for flow control, & an easy release manual push rod for quick reloading. The machine's on-board puncture tool can break the tube seal if needed. The switch lock helps prevent accidental start-ups. The machine can produce over 225kg of push force to handle higher viscosity materials. The soft grip overmould ensures enhanced grip & reduced vibration for user comfort. The no load speeds is up to 5.5mm/s & as low as 1mm/s. This item is a 'bare' tool (without battery or charger) which is a great value way to expand your ONE+ collection. All ONE+ batteries & chargers are compatible with all ONE+ tools & a 3yr warranty is included across the entire ONE+ range.