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Internet #

310205789

Model #

48-20-6945

Store SKU #

1004679965

Store SO SKU #

1004503370

PLUSLOK 18 in. SDS-PLUS Carbide Bit Extension

$99.97
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  • 18" Length for Increased Accessibility in Tough to Reach Areas
  • Ideal for Tight Access In and Around Obstructions
  • Universal Extension Fits All SDS Plus Rotary Hammers
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Product Details

Milwaukee SDS Plus PLUS-LOK Extensions provide increased access in tough to reach areas and around obstructions. The extensions are universal, fitting all brands of SDS Plus rotary hammers and accessories including but not limited to drill bits, chisels, core bits and anchor installation solutions. Due to their small profile design, the PLUS-LOK extensions are ideal for drilling deep through holes with drill bits 7/8 in. and larger. Additionally, the auto-insert mechanism allows for tool free connection and ease of use. By increasing accessibility and decreasing the number of drill bits needed to complete a job, the universal SDS Plus PLUS-LOK Extensions allow users to Reach More and maximize productivity.
  • Compatible with all SDS plus accessories including drill bits, chisels, core bits and anchor installation solutions
  • Small diameter profile allows for drilling deep holes 7/8 in. and larger
  • Auto-insert mechanism for tool free connection
  • Reduces number of drill bit lengths required to complete a job
  • Includes: (1) PLUSLOK SDS+ 18 in. extension
  • Shop All Milwaukee Tools
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Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

6Questions
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Q:Can multiple extensions be used together or are their longer ones available? I need at least 24” extension.
by|Mar 17, 2022
1 Answer
Answer This Question

A:  We offer an extension in 18" (48-20-6945).

by|Apr 4, 2022
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    Q:So one end is male and one female for sds drills?
    by|Nov 28, 2021
    1 Answer
    Answer This Question

    A:  Exactly!

    by|Apr 14, 2022
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      Q:Can I use it with SDS+ 10 inch chisel? The longest SDS+ chisel bit I can find is 10 inch compare ...
      by|Sep 3, 2020
      4 Answers
      Answer This Question

      A:  Of course, anything can happen. But, this extension is as well made as any bit I have used and, if that’s what I needed, I’d give it a go. Good luck!

      by|Sep 3, 2020

      A:  I don't think it would break, it would appear that is what it is made for, You could try it, and if it doesn't work, you haven't lost much.

      by|Sep 3, 2020

      A:  My experience is that it works fine with a chisel. The product description also states that it is suitable for chisels. Depending on your situation, you might want to consider the 18-inch extension. I did find that I needed to work some lubricant into the slide mechanism after several months. It was needed to address rusting. The extension is a great accessory for my hammer drills. It eliminates a lot of bending over. The accessory that I can not find is an SDS Plus to Max bit adapter.

      by|Sep 3, 2020
      1 found this answer helpful

      A:  Yes I love it thank you

      by|Mar 7, 2021
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      Q:Is it a 1/2” drive?
      by|Mar 22, 2020
      2 Answers
      Answer This Question

      A:  This extension is designed to fit in an SDS Plus chuck. Since I have SDS Plus hammer drills, it never occurred to me to see if it would fit in a three-jaw chuck. I tried it in both 1/2-inch and 3/8-inch chucks and it fit both, and the chuck tightened and centered the extension--no wobble. (It would work the same on a SDS Plus drill bit.) I do not really recommend doing this and since I do not have a hammer drill with a three-jaw chuck, I do not know if the chuck would remain tight during repeated hammer blows.

      by|Sep 3, 2020
      1 found this answer helpful

      A:  It is SDS or Slotted Drive System, technically not 1/2" drive. Though, you can, and I have chucked them up in my 1/2" hammer drill.

      by|Mar 23, 2020
      Showing 1-4 of 6
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      Customer Reviews

      4.6 out of 5
      (72)
      • 4.6
        out of 72 reviews
      • 96% recommend this product
      Filter by:
      Showing 1-10 of 72 reviews
      18 18=36
      If you have a sds plus bit that 7/8" or over it greatly increase a your drilling depth. Also just help you reach some areas that have might otherwise been difficult to fit the whole drill in. Only use a couple times now but seem real sturdy like.
      by
        • Recommended
        I have been a builder remodeler for 49 years, and as such I have many opportunities to use a too...
        I have been a builder remodeler for 49 years, and as such I have many opportunities to use a tool like this Milwaukee PLUSLOK 12 IN. SDS-PLUS CARBIDE BIT EXTENSION. This tool is of high quality, and it works very well for work requiring impact drilling work with an SDS hammer drill as we often do. Milwaukee tools are always of high quality as well, so this is a very good example of that.
        by
        • Recommended
        This extension gives me some possibilities that other wise would be a problem. Some areas are tig...
        This extension gives me some possibilities that other wise would be a problem. Some areas are tight for drilling that a drill can not fit into. The extension can go into the tight areas and the drill is easy to work with room on the outside of the tight area. If working over head a ladder may not be needed with the extension giving me the high I need. The drills quickly snap in and out.
        by
        • Recommended
        The pluslok 18 inch SDS-Plus carbide bit extension works well to give added reach. The slip rele...
        The pluslok 18 inch SDS-Plus carbide bit extension works well to give added reach. The slip release mechanism to allow an SDS-Plus bit to be inserted operates easily and engages to hold the bit in securely. It easily slides by grasping it firmly and moving it in the direction of the printed arrow on the side to release the bit. The quality of the extension is good and appears heavy duty.
        by
        • Recommended
        This pluslok 18 inch sds plus bit extension is amazing. I expected there to be some slight to me...
        This pluslok 18 inch sds plus bit extension is amazing. I expected there to be some slight to medium downfall in performance since I expected the flex in an extension and connector to take away from the impact of the tool. I can see everyone's eyes rolling already...but the drilling performance IMPROVED with the extension attached. I decided to go big and test it with a 2-5/8" carbide concrete bit that we use for drilling through foundations for conduit. I promise that it actually drilled faster with the extension. I went through hard subgrade rated mortar which is usually tough to drill. We used the Milwaukee FUEL 1-1/8" sds plus hammer drill. By the way this is a formidable tool that we have been abusing for years and it just keeps going. The tool is available at Home Depot online and in stock in some busier stores. It locks in easily with no extra tools or accessories needed. Is it possible the extension flexes and stores torque for a better impact? I don't know. I'm not an engineer. All I know is that it drilled faster. Of course this is meant to drill in difficult to reach locations and the added impact is just a bonus. I'll be using this to drill floor anchors on industrial equipment without having to bend over. Highly recommend! I'll be ordering more.
        by
        • Recommended
        1 found this review helpful
        This SDS-Plus 18 inch extension assists the user by extending your reach by 18 inches when drilli...
        This SDS-Plus 18 inch extension assists the user by extending your reach by 18 inches when drilling into conrete with selfeed and core bits. When drilling holes for concrete anchors, it’s not uncommon to encounter obstructions, such as previously installed pipe, which can create a tight fit for the rotary hammer. In these situations, users have had to create their own solutions to get more reach. The PLUS-LOK™ SDS-Plus Extensions change all of this by easily locking into the bit for a tool-free connection, allowing users to finally achieve the reach necessary to drill the hole in the desired location without the need for long drill bits. Each extension also outlasts several drill bits and is built to withstand aggressive applications such as side-loading or drilling through rebar in concrete
        by
        • Recommended
        Milwaukee 48-20-6940 12” SDS PLUS-LOK Drill and Tool Extension – This extension allows a drill bi...
        Milwaukee 48-20-6940 12” SDS PLUS-LOK Drill and Tool Extension – This extension allows a drill bit, chisel or scrapper to be extended 12”…When using this extension to extend the overall reach of a drill bit, any size drill bit can be used…When using this extension to increase the drilling depth of a drill bit, the drill bit must be larger than the diameter of the quick collar on the extension, larger than ¾”…When using this extension to extend the reach of a chisel, any size chisel can be used…When using this extension to extend the reach of a scrapper, any size scrapper can be used…I tested this tool as a drill bit extension, making the task of drilling anchor holes in a concrete ceiling easier…This extension performed as indicated, intended and expected without any problems...
        by
        • Recommended
        Milwaukee 48-20-6945 18” SDS PLUS-LOK Drill and Tool Extension – This extension allows a drill bi...
        Milwaukee 48-20-6945 18” SDS PLUS-LOK Drill and Tool Extension – This extension allows a drill bit, chisel or scrapper to be extended 18”…When using this extension to extend the overall reach of a drill bit, any size drill bit can be used…When using this extension to increase the drilling depth of a drill bit, the drill bit must be larger than the diameter of the quick collar on the extension, larger than ¾”…When using this extension to extend the reach of a chisel, any size chisel can be used…When using this extension to extend the reach of a scrapper, any size scrapper can be used…I tested this tool to increase the drilling depth of a drill bit, I drilled a 1” hole in approximately 14” of concrete for a run of ½” PVC conduit…This extension performed as indicated, intended and expected without any problems...
        by
        • Recommended
        3 found this review helpful
        This is an outstanding addition to your rotary hammer/drill collection. It is built with a slide locking mechanism similar to the one on your drill itself. Unless you are drilling a very large hole the extension won't allow you to go deeper than the length of your bit, it will allow you to reach places that you otherwise can't reach. It seems to me that the combination loses a bit of its "hammer power" which is understandable since it is going through another connection. It was not a big deal but I mention it in case you drill does not have a powerful hammer action to begin with. This extension works great and simplifies access on some of my projects.
        by
        The Milwaukee SDS Pluslok 12 inch extension is a nice tool for use with a rotary hammer drill. I...
        The Milwaukee SDS Pluslok 12 inch extension is a nice tool for use with a rotary hammer drill. It is heavy duty and typical Milwaukee high quality that I am use to. The 12 inch reach comes in handy in many situations and the bit holder is too large to slip into or through the drilled hole. Overall this is a nice quality product typical of Milwaukee.
        by
        • Recommended
        Showing 1-10 of 72 reviews

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