Steel half-barrel (also called cradle) frame caulking gun for 1/10-gal. cartridges
Thrust ratio of 6:1 for use with medium viscosity materials
Ratchet-style pressure rod has teeth to hold the rod in place after each pull of the trigger for minimizing drips
Rod retracts after each pull of the trigger to help prevent dripping
Welded plate in back for securing cartridge in place