Yato YT-09702 Reversible Air Drill is a must-have tool that is suitable for professionals or enthusiasts. This drill is great for carpenters, mechanics, electricians, fixer-uppers, repair shops and repairmen at home and the office. The keyed chucks are engineered to either loosen or tighten the hold on a drill bit with a key. Keyed chucks offer the advantage of applying additional torque on the bit when slippage is a concern during heavy-duty applications. The drill machine has functions of left/right rotation, reversible rotates, easy to operate and high efficiency. It offers a rotational speed of 800 rpm, a 1/4-inch pneumatic connection and a maximum drill size of up to 13 mm.