The Groz Grease Gun Pistol Action Adjustable Mechanism (400 gms), designed for convenient use even in the harshest cold weather conditions. Built tough with textured finish powder coated barrel and an aluminum die-cast head with a bulk loader valve which doubles as an air bleeder, this grease gun ensures durability and reliable functionality. The Venturi Mechanism, coupled with a large grease inlet, helps retain prime, ensuring consistent and precise grease application. What sets the Groz All-Weather Pistol Action Grease Gun apart is its unique Adjustable Mechanism, effortlessly switching between high pressure and high volume settings. Versatile and convenient, this grease gun works with both 14 oz. (400 gm.) grease cartridges and 500cc bulk fill. Supplied with a 12" (300mm) × 0.425" (11mm) high-pressure grease hose and coupler, it's ready to conquer any lubrication challenge with ease and precision.