The MH502A series of rock drills are the first choice for multiple kinds of drilling operations. With the largest in-class piston diameter and its superior integral oiler lubrication system, the MH502A has very low spare parts consumption. This drill also has low air consumption thereby reducing overall running costs. Combined blower & throttle lever and T-handle increases operator comfort. Its robust construction quality and streamlined designed allow high penetration rates over a long period of time with minimum maintenance costs and downtime. Key Features: Integral oiler provides continuous & efficient lubrication Graduated ratchet throttle control ensures accuracy in collaring holes Tough latch retainer provides extra support to collar and reduces wear T-handle for increased comfort Blower lever for deep hole cleaning High speed drilling Low maintenance