The Milwaukee 2642-21CT M18 Cordless 20-oz Aluminum Barrel Sausage Style Caulk and Adhesive Gun has all-metal gears provide 950 lbs of force. Constant Flow Technology eliminates motor oscillation for steady dispensing and even beads at all viscosity levels and a variable-speed trigger with six-setting speed dial optimize the tool’s 0-21 inches per minute (IPM) flow rate. Milwaukee anti-drip mechanism stops excess material when the trigger is released and a rotating collar gives you improved bead control around turns. The kit includes an 18V compact battery, 30-minute charger, 20-oz aluminum sausage-style barrel, 20-oz plunger rod and piston assembly.