4 speeds Variable: The caulking tool device has 4 speeds settings on the top of the caulking device, from 0 to 220mm/Min, which can easily control the adhesive flow and volume, and can apply a perfectly consistent smooth adhesive bead for a long time. This caulking tool is suitable for 10oz and 300ml cartridges450LM LED Working Light: Equipped with a 450lm working light, the LED light of the caulking device is focused on the hose head, which is convenient for working in the dark or weak lightSecurity protection and portable use: Security switch design, the pull rod handle will automatically cut off the power after working to the head, the speed adjustment button and the LED lighting switch button will not work when pressed, you need to press the switch button with your index finger, pull the pull rod handle out, and press the button to work normally. Built in low voltages protection to avoid damage to caulking tools and circuits;Wide Application: This rechargeable electric caulking device is no drip and fits perfectly in all standard 10oz/300ml sealant and adhesive boxes. Widely used in kitchen waterproofing and patching, shower installation, tile repair and joint sealing. Used to fill tile gaps with joint sealing or caulking or glass glue materials in a convenient way Suitable for: Suitable for 18-21V batteries, 18V LXT battery models: BL1860B BL1860 BL1850 BL1840 BL1830 LXT 400 L70 BL1415 BL1420 BL1815 BL1820 BL1845 and more (battery not included) Size Chart: 40cmx20.5cm/15.75inchx8.07inch Package Includes: 1 Electric Glue Tool (without battery)1 Glue Scraper4 Cornering Consumables3 Nozzles1Pc Pass Pin Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.