Features: Electric caulking machine, with 8mm diameter electric drill joint for use with electric drill, convenient to use, smooth and labor-saving, improve caulking efficiency. Thickened caulking machine with reinforced designs for anti-drop, made of nylon material, with high hardness and can provide long service time. The loading port adopts funnel-shaped designs, which is convenient for you to use, loading fast and improve efficiency. The rear part adopts labor-saving bearing design, which greatly improves the working stability and discharge speed. Threaded detachable nozzles design, easy to install and remove, comes with four different shaped nozzles, you can use different nozzles according to different scenarios. Thickened and enlarged feeding rod, wear resistance and with long durability, will not block the materials, the mortar requirements are relatively low, fast discharge, greatly improving the working efficiency.Suitable for a variety of scenarios, such as caulking construction, door and window caulking, brick wall caulking, construction site, etc. Specifications: Material:Nylon/Metal Option Type:Nylon Electric Caulking Machine set,Metal Electric Caulking Machine set, Nozzle Size:Approx.15mm/0.59in,17mm/0.67in,23mm/0.91in,42x13mm/0.65x0.51in Length:Approx.270mm/10.63in Package Includes: 1xElectric Caulking Machine 4xNozzle note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.