The Milwaukee 2641-20 M18 Cordless 10 oz Caulk and Adhesive Gun is built for contractors and serious users who need steady material flow, strong pushing force, and better control than a manual gun can deliver. This is a cordless caulk and adhesive gun designed for dispensing caulk and high-viscosity adhesives with controlled, even beads. Model Number 2641-20. In its standard setup, it is configured for 10-ounce tubes and sold as a bare tool, which makes it a practical fit for anyone already on the Milwaukee M18 battery platform.

What matters most on a tool like this is whether it can keep material moving without surging, skipping, or turning every bead into cleanup work. Milwaukee gives this gun up to 950 lbs of dispensing force with all-metal gears, so it can handle thick adhesives that would fight a weaker drive system. The CFT Constant Flow Technology helps keep the bead consistent instead of pulsing as the motor cycles, and that matters when you are sealing long joints, laying adhesive for trim or panels, or doing finish work where appearance counts.

Control is another big part of why this tool earns its place. You get a variable-speed trigger for real-time adjustment plus a 6-setting maximum speed dial that tunes flow rate from 0 to 21 inches per minute. That combination gives you fine control over both bead width and feed speed. On the job, that means you can slow down for tighter joints and edge work, then open it up when you need to move quickly on longer runs.

The anti-drip mechanism is not a throwaway feature. When you release the trigger, the tool is designed to stop material from continuing to ooze out. That helps reduce waste, keeps finished surfaces cleaner, and saves time you would otherwise spend wiping, trimming, or reworking excess sealant. If you have ever fought stringing adhesive on a vertical seam or tried to keep a clean line around doors, windows, or exterior masonry joints, you know why that matters.

Milwaukee also built in some useful flexibility up front. The rotating quick-change collar helps you position the tube for better bead control around turns and awkward angles. More importantly, it accepts Milwaukee quick-change configurations, including 10-ounce carriage, quart-size carriage, and 20-ounce sausage barrel setups. So while this version comes set up for 10-ounce tubes, the platform is not locked into one format if your work changes.

From a jobsite practicality standpoint, the bare tool weight is about 4.9 lbs, and the cordless format lets you move from room to room, ladder to ladder, or exterior to interior without dragging a cord or hand-pumping through heavy material. Milwaukee also states that with a REDLITHIUM battery installed, the tool can dispense more than 200 10-ounce tubes of construction adhesive on one charge, which gives crews a better sense of runtime for production work. Batteries and charger are sold separately, so this is best suited to buyers who already have M18 packs or plan to choose their battery size based on runtime needs.

This Milwaukee caulk and adhesive gun makes the most sense for remodelers, glazing crews, exterior sealant work, flooring installers, maintenance techs, and general contractors who regularly run long beads or thicker adhesive products. If you only open a tube once in a while, a manual gun may still be enough. If caulk, sealant, or adhesive is part of your weekly workflow, this tool pays you back in speed, consistency, and less hand fatigue.

Milwaukee 2641-20 M18 Cordless 10 oz Caulk and Adhesive Gun means less fighting the material

This is the kind of tool that makes sense fast if you run sealant or adhesive often enough to care about bead quality, speed, and hand fatigue.

• Who it's for: Contractors, remodelers, maintenance crews, and tradespeople who regularly apply caulk or thick adhesive and already use M18 batteries.
• Why it stands out: The 950 lbs of force, Constant Flow Technology, and anti-drip setup solve the three big problems with powered dispensing: not enough push, uneven feed, and messy release.
• Worth knowing: This is a bare tool. You get the 10-ounce setup, but battery and charger are separate, so first-time M18 buyers need to factor that in.

• Is this a cordless or corded caulk gun? It is a cordless caulk and adhesive gun that runs on the Milwaukee M18 battery system.
• What size tube does it handle in the included configuration? It is configured for standard 10-ounce tubes with a maximum tube capacity of 10 oz in the included setup.
• Will it work with all M18 batteries and chargers? Yes. It is compatible with all Milwaukee M18 batteries and all Milwaukee M18 chargers.
• Can it handle thicker adhesives? Yes. Milwaukee rates it at up to 950 lbs of dispensing force for high-viscosity materials.