Model # 2643-21CT

Internet #203374632

Store SO SKU #1000795499

Milwaukee M18 18-Volt Lithium-Ion 20 oz. Cordless Clear Barrel Sausage Style Caulk and Adhesive Gun Kit


M18 18-Volt Lithium-Ion 20 oz. Cordless Clear Barrel Sausage Style Caulk and Adhesive Gun Kit

$31900 /each
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Product Overview

Milwaukee Electric Tool introduces the new M18 Cordless Caulk and Adhesive Gun. The 2643-21CT kit includes a clear barrel, ideal seeing remaining material and watching for bag wrap or blowback. This powerful new applicator delivers incredible pushing force for tough applications and the highest level of bead control available in any cordless tool. Milwaukee built all metal gears provide an industry leading 950 lbs. of force for the highest viscosity materials. The variable speed trigger and six setting maximum speed dial optimize the tool’s 0-21 IPM (inches per minute) flow rate. CFT Constant Flow Technology eliminates motor oscillation resulting in steady material dispensing and even beads at all viscosity levels. Milwaukee Anti-Drip mechanism instantly stops excess material from oozing upon the release of the trigger. The tool features a rotating collar designed to maximize bead control around turns. The interchangeable Quick-Change carriage design allows the user to easily change between 10-oz., Quart, and Sausage style material containers. Over 200 tubes of 10-oz. construction adhesive can be dispensed on one battery charge using the included M18 RED LITHIUM battery.

  • 950 lbs. of dispensing force - Milwaukee built all metal gears deliver industry leading force for the highest viscosity materials
  • Variable speed trigger - allows for maximum control of the flow rate and bead width
  • Constant flow technology - results in a steady material flow rate and even beads at all viscosity levels
  • Anti-Drip mechanism - instantly stops material from expelling upon trigger release
  • Rotating Quick-change collar - accepts all Milwaukee quick change configurations: 10 oz. carriage, quart-size carriage, and 20 oz. sausage style barrels
  • 6-setting max speed dial - optimize flow rate from 0-21 IPM (inches per minute) based on application
  • Includes: M18 caulk gun (1) M18 compact RED LITHIUM battery (1) 30-minute charger (1) 20 oz. clear sausage style barrel (1) 20 oz. plunger rod and piston assembly
  • Compatible batteries: compact (48-11-1815), extra capacity (48-11-1828)
  • Compatibile chargers: M18/M12 multi-voltage (48-59-1812), M18 AC/DC (2710-20)
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Batteries Included
Battery Power Type
Lithium Ion
Battery Size
Lithium Ion
Caulk Type
Charger Included
Color Family
Cordless Tool Type
Caulk Gun
Cordless/ Corded
Ladder Hook
Maximum tube capacity (oz.)
Product Weight (lb.)
Spout Cutter
Tools Product Type
Power Tool
Variable Pressure Control
Voltage (volts)

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed,ETL Listed
Manufacturer Warranty
5 Year Limited Warranty on Tool and 2 Year Limited Warranty on Battery

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Customer Questions & Answers

Will there be a discount on this gun during black friday?

Asked by: Bryan
Thank you for your recent inquiry with The Home Depot, Bryan. We do not have advance notice on items and pricing ahead of promotions. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
Answered by: THDSupport
Date published: 2015-12-08

Will there be a discount on this gun during black friday?

I need to know if this gun will have any type of discount during black friday?
Asked by: Alexis
  • y_2017, m_7, d_17, h_15CST
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Customer Reviews

M18 18-Volt Lithium-Ion 20 oz. Cordless Clear Barrel Sausage Style Caulk and Adhesive Gun Kit is rated 4.8 out of 5 by 6.
Rated 5 out of 5 by from I haven't used the gun too much yet but I... I haven't used the gun too much yet but I have used it fora few small projects and it's truly a great time saving tool. I've caulked about 250 feet of baseboard and it's been a breeze doing it. Milwaukee has hit a home run with this gun!
Date published: 2017-03-07
Rated 5 out of 5 by from Fantastic Had this for 3 weeks now, and I am able to glaze 1500 linear ft on 1 charge. Wish it was a bit faster output. My buddy has a dewalt and he likes mine better.
Date published: 2017-05-09
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-21
Rated 5 out of 5 by from Nice Gun All metal gears so you can dispense quit a few different materials. I used it to patch some mortar around the mother in laws house and to fix some of her brick where the water hose was and it worked like a charm. It is a bit heavy so you definitely have to use both hands. The remote speed dial and variable speed trigger allows for maximum bead control. I like the fact that the material stops flowing as soon as you release the trigger..And according to the website you can dispense over 200 tubes of general construction material on a single battery charge' Great find..
Date published: 2016-12-14
Rated 4 out of 5 by from Top Of The Line Battery-Powered Caulk Gun For Home Or Business When I replaced my bathroom vanity I knew that I would inevitably require a caulk gun to seal up areas where water could get into and cause water damage to the wall as well as to apply adhesive to secure the new vanity topper. This M18 caulk and adhesive gun with clear barrel definitely fit the bill and got the job done with no muss, no fuss, no mess and in record time. If you look at the attached photos you'll see I used some foam pieces to hold the topper off the vanity cabinet for adhesive application. This was because I had to hook up the faucet to water and drain and I didn't want to do the work a 2nd time. I also was doing this without a helper to position the topper after the adhesive was applied. The foam pieces allowed me to just apply the adhesive, then slightly lift the topper off the foam pieces one-by-one, leaving the topper in the same position. This made it possible to verify a perfect fit the entire time. Overall, I would have to say that I am very pleased with this caulk gun both in aesthetic design, but also in functionality. Following are the combined reasons for one star being taken off: 1. Price is a little steep for battery power and clear rigid polycarbonate barrel. 2. Speed setting of caulk gun should have been controlled via trigger, not a rotary knob that can't be adjusted during operation. 3. No indicator for battery charge level.
Date published: 2016-11-25
Rated 5 out of 5 by from Great for high volume application I got this in anticipation of replacing a few hundred square feet of subfloor and flooring. This caulking gun has interchangeable barrels so I also bought the 10 oz conversion kit #48-08-1076 so I could use it with common 10oz cartridges. The 20oz sausage barrel comes with one tip. Replacement Milwaukee tips are fairly expensive, but other tips will also fit. It comes with the compact M18 battery 48-11-1815 and 48-59-1812 charger, which also charges M12 batteries. The dial sets the speed range from 1 to 6. A warning is included that speed 6 should only be used with sausages, not cartridges. Once a speed range is selected, the variable speed trigger changes speed within that range. I found it difficult to maintain a constant speed (an therefore a even bead width) unless the trigger was fully depressed for maximum speed in that speed range. Low speed is pretty low, so running at maximum speed in low range works OK for lower volume work like caulking around windows. The back-off when the trigger is released worked perfectly. The gun is heavy enough that it requires two hands to use, at least for me. One nice feature is that the whole barrel rotates, making it easy to align tips cut on an angle with the work surface, regardless of how the gun is being held. As might be expected, this caulking gun is best suitable for high-volume application of construction adhesive or similar material.
Date published: 2016-12-11
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