Milwaukee 2642-21CT - M18™ Cordless 20 oz Sausage Style Caulk and Adhesive Gun KitThe heavy duty metal gear box delivers an industry leading 950 lbs of pushing force for the highest viscosity materials. The M18 adhesive gun kit offers both a remote speed dial and a variable speed trigger that optimizes the users control over bead and flow rate. Milwaukee's industry leading motor and electronics technologies have created a new constant flow technology that allows for a steady flow rate at 0 21 ipm throughout use of the adhesive gun.