INCLUDES:? Connection 48-20-6950 and grease 49-08-5385FEATURES:? Allows for drilling in tight spaces? Extends SDS-MAX drill and core bits? Maximum energy transfer maintains drilling productivity? Use with Max-Lok? Extensions? For use with SDS-MAX drill and core bitsThe easy to use Max-Lok? system allows SDS-MAX bits to drill deeper and in tight spaces by extending SDS-MAX bits up 82?. The system offers the ability to extend SDS-MAX bits and be driven with an SDS-MAX rotary hammer, as well as adapt to either an SDS-PLUS or Spline rotary hammer. The Max-Lok? system is designed for maximum energy transfer to maintain drilling productivity. Max-Lok? extensions range in length from 12.5? to 82.5?. These extensions offer an SDS-MAX, SDS-PLUS, or Spline shank at one end fitting into the rotary hammer and an SDS-MAX shank at the other end, to connect to the Max-Lok? connection. The Max-Lok? connection piece securely locks the two SDS-MAX shanks (bit and extension) together allowing for maximum versatility.