The RYOBI® 18V ONE+™ Power Caulk & Adhesive Gun features a variable speed lever to adjust the discharge rate and control the bead of caulk. This tool features over 500 lbs. of push force to handle higher viscosity materials and also includes an on-board puncture tool to break the tube seal if needed. The all metal manual plunger rod with hook end allows users to quickly change out tubes. The 18V ONE+™ Power Caulk & Adhesive Gun can apply over 200 tubes of caulk in one single charge using any RYOBI® 18V ONE+™ battery. The 18V ONE+™ Power Caulk & Adhesive Gun is sold as a bare tool, allowing you to build on your ONE+™ collection without spending additional money on batteries and chargers with each tool purchase. Best of all, like every RYOBI® 18V ONE+™ blue or green tool, this Power Caulk & Adhesive Gun works with any 18V ONE+™ battery. Upgrade to lithium-ion or LITHIUM+™ batteries for lighter weight and better performance.