The Heavy Duty Cartridge Caulking Gun Type 21 is a premium quality tool designed for the smooth and efficient application of sealants and adhesives in cartridges. Built with a robust steel handle and frame, this gun ensures durability and longevity, even with frequent use. Its low gearing ratio reduces the force required for dispensing, allowing for easier and more comfortable application. The anti-wear design ensures a long service life, making it an ideal choice for professionals and DIY enthusiasts.