M18™ Cordless Caulk and Adhesive Gun

Milwaukee 2641-20 – Product Description

Milwaukee 2641-20 is an M18™ cordless 10-oz caulk and adhesive gun designed to dispense sealants, caulk, and construction adhesives with consistent flow and minimal hand fatigue. It is powered by Milwaukee’s M18 lithium-ion battery system and delivers high pushing force suitable for thick materials.

Key Features

• 950 lbs. pushing force for dispensing high-viscosity adhesives and sealants
• Constant Flow Technology (CFT) for smooth, consistent bead application
• Variable-speed trigger + 6-position speed dial for precise control of material flow
• 0–21 inches per minute dispensing rate for controlled application
• Anti-drip clutch stops material flow immediately when trigger is released
• Rotating collar for better control when working around corners
• All-metal gear system for durability on job sites

Typical Applications

• Sealing joints with silicone or caulk
• Applying construction adhesives
• Window, door, and siding installation
• HVAC and plumbing sealing work
• Industrial assembly and maintenance

Basic Specifications

• Model: 2641-20
• Platform: Milwaukee M18™
• Cartridge Capacity: 10 oz
• Max Pushing Force: 950 lbs
• Flow Rate: 0–21 in/min
• Power Source: 18-V lithium-ion battery (tool-only version usually sold without battery/charger)

✅ Short catalog description:
Milwaukee 2641-20 M18 Cordless 10-oz Caulk and Adhesive Gun featuring 950-lb push force, variable speed trigger, constant flow technology, and anti-drip clutch for controlled dispensing.