M12 FUEL Brushless 2-Tool Combo Kit is the Most Capable and Most Compact 12-Volt Hammer Drill Driver and Impact Driver Combo Kit on the market.. The PACKOUT rolling tool box is constructed with impact resistant polymers and metal reinforced corners so it can withstand harsh jobsite environments. 250 lbs. of weight capacity. The Milwaukee Shockwave 75pc Impact Drill & Drive Set is engineered to be the Most Durable, Best Fitting driver bits on the market, with Wear Guard Tip.