Swap Banner

Product Details


  • Versatility: System is compatible with any rotary hammer for drilling in tight spaces
  • Efficiency: Save time and money by leveraging your shorter, less expensive bits and rotary hammer
  • Maximum energy transfer: Maintain drilling productivity, even at 82-1/2"
  • Easy to use: The connection adapter's sliding sleeves offer twist and lock security


Length 12-1/2"
Style Adapter / Extension
Tool Shank Spline


Extend your SDS-MAX drill and core bits 12-1/2" with the Milwaukee® exclusive Max-Lok™ 12-1/2" Spline Adapter. Drill deeper and in tight spaces with confidence. The Max-Lok Spline Adapter lets you lengthen and use SDS-MAX core and drill bits in a variety of rotary hammers. The connections are designed for optimum energy transfer, so you won't lose drilling productivity. The Max-Lok Extension System lets
you get more value out of your SDS-MAX drill and core bits. The easy-to-use Max-Lok Connection Adapter (sold separately) accommodates SDS-MAX, SDS-PLUS or spline shanks for a truly universal system that's compatible with all common rotary hammers. The adapter securely locks the two SDS-MAX shanks (bit and extension) together for maximum versatility and strength in extensions from 12-1/2" to 82-1/2".

Model Options

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

Product Reviews