This grease gun is a basic grease gun with professional features. It provides heavy-duty high pressure lubrication. It has an excellent value of having a heavy 18 gram electrostatically coated barrel with rugged wide band knurling for sure grip. Follower rod lock prevents accidental grease discharge and tough follower with heavy-duty spring offers superior seal and eliminates grease bypass. Slip resistant grip on contoured lever assures firm grip for comfort and safer operation. It gives an output of 5. 2 ounces (150 gram) of grease per 100 strokes and comes complete with four hardened jaws hydraulic coupler with ball check non-drip cap and 6 inches (150mm) extension pipe.