Milwaukee New Max-Lok Carbide Extension System

Milwaukee® Introduces New Max-Lok™ Carbide Extension System

At Milwaukee’s recent media event I had the chance to look and try out their new Milwaukee New Max-Lok Carbide Extension System.  I was super impressed with the ease of connection, durability and opportunities that these extensions offer.

This system is used to extend SDS-MAX rotary hammer bits from 12.” and up to 82.5. ”  That’s a huge distance!

The Max-Lok™ system is designed to give users the ability to drill in hard to reach areas or drill large diameter through holes. (over 1-1/4”) 

Max-Lok™ extensions are available in SDS-MAX, SDS-PLUS, or Spline shanks that each convert to an SDS-MAX shank at the opposite end. This allows the user to connect all three shank types to the Max-Lok™ connection (48-20-6950) and securely lock both the extension and bit together for maximum reach.


Max-Lok Accessories: 

  • Max-Lok™ Carbide Extension System
  • Max-Lok™ connection (48-20-6950)
  • SDS-Max 12.5” Max-Lok™ Extension (48-20-6960)
  • SDS-Max 29.5” Max-Lok™ Extension (48-20-6962)
  • SDS-Max 43” Max-Lok™ Extension (48-20-6964)
  • SDS-Max 63” Max-Lok™ Extension (48-20-6966)
  • SDS-Max 82.5” Max-Lok™ Extension (48-20-6968)
  • SDS-PLUS 12.5” Max-Lok™ Extension (48-20-6980)
  • SDS-PLUS 29.5” Max-Lok™ Extension (48-20-6982)
  • SPLINE 12.5” Max-Lok™ Extension (48-20-6970)
  • SPLINE 29.5” Max-Lok™ Extension (48-20-6972)
  • SPLINE 43” Max-Lok™ Extension (48-20-6974)
  • Grease Max-Lok™ (49-08-5385)

About the author

Rob Robillard

Robert Robillard is a remodeler, general contractor, and principal of a carpentry and renovation business located in Concord, Massachusetts, and serves as the Editor of Tool Box Buzz and founding editor of A Concord Carpenter . Rob is in charge of our Tool and Product Review - Tool and Product Review - Video Channel, , where we post all of our tool reviews and video tutorials. Rob enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the remodeling industry. The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob Robillard

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