Features: 4speed levels: battery Caulking Tool compatible have four adjustable speed setting that allow precise control of the conveying speed from 0 to 196mm/min and give you full controls over the adhesive flow. Automatic rebounds: Caulking Tool for 18v is equipped with automatic backstop function that prevents the leakage of adhesive immediately as soon as the triggers is released, avoiding material waste and ensuring a clean operation. LED light design: battery Caulking Tool for compatible facilitates precise work even in dark areas thanks to the integrated 450LM LED lamp, so you do not have to worry about sufficient lighting. Wide ranges of applications: electric cartridges press is suitable for a variety of materials and is compatible for standard 10oz/300ml cartridges, making it a tool for sealing and repair work. Powerful compatibility: cartridges presses are compatible for 18V-21V lithium batteries. Also for 18V: BL1815 BL1820 BL1830 BL1840 BL1845 BL1850 BL1860, etc. Specifications: Component:Stainless Steel Compatible for 18V-21V lithium batteries. also for 18V: BL1815 BL1820 BL1830 BL1840 BL1845 BL1850 BL1860, Voltages:DC18-21V Adjustable Speed 4Gear:77-86mm/min,115-121mm/min,152-158mm/min,190-196mm/min, Extrusion Pressure:250KGS Operating Current:1A Package Includes: 1pc Caulking Tool(Battery not Included) note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.