Product Details


  • 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 bits


Type Masonry Drill Bits
Style Connection Adapter


Extend your SDS-MAX drill and core bits up to 82-1/2" with the Milwaukee® exclusive Max-Lok™ Connection Adapter. Drill deeper and in tight spaces with confidence. The easy-to-use Max-Lok Connection Adapter securely locks the two SDS-MAX shanks (bit and extension) together for maximum versatility and strength. The system is designed for optimum energy transfer, so you won't lose drilling productivity,
even at 82-1/2". The Max-Lok™ Extension System lets you get more value out of your SDS-MAX drill and core bits. The Adapter accommodates SDS-MAX, SDS-PLUS  or spline shanks for a truly universal system that's compatible with all common rotary hammers. Max-Lok extensions range from 12-1/2" to 82-1/2". The Adapter includes the required grease (49-08-5385) to keep the system operating properly.

Model Options

Item/Cat # Type Tool Shank Length  
48-20-6950 Masonry Drill Bits
48-20-6960 Masonry Drill Bits SDS-MAX 12-1/2"
48-20-6962 Masonry Drill Bits SDS-MAX 29-1/2"
48-20-6964 Masonry Drill Bits SDS-MAX 43"
48-20-6966 Masonry Drill Bits SDS-MAX 63"
48-20-6968 Masonry Drill Bits SDS-MAX 82-1/2"
48-20-6980 Masonry Drill Bits SDS-PLUS 12-1/2"
48-20-6982 Masonry Drill Bits SDS-PLUS 29-1/2"
48-20-6970 Masonry Drill Bits Spline 12-1/2"
48-20-6972 Masonry Drill Bits Spline 29-1/2"
48-20-6974 Masonry Drill Bits Spline 43"
49-08-5385 Masonry Drill Bits

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