Westward 13J322 20 oz Caulk Gun Steel Half Barrel 7:1

Westward 13J322 20 oz Caulk Gun

The Westward 13J322 is a steel half-barrel caulk gun built for 20 oz cartridges. It uses a ratchet-rod plunger with a 7:1 thrust ratio to push material through the nozzle. The frame includes a ladder hook, a puncture tool and a spout cutter. A wrist wrap is supplied for added comfort during extended use.

Suited to cartridge work, less so for bulk

This gun suits tradespeople and DIY users who apply sealant or adhesive from standard 20 oz cartridges. The half-barrel frame keeps the cartridge visible while the steel barrel resists deformation. Buyers who need to dispense from bulk containers, sausage packs or larger cartridges will find the fixed 20 oz capacity limiting. The 7:1 ratio may also feel low for very high-viscosity materials.

Fits a tool belt, frees a hand

The compact half-barrel design slides into a tool belt or bucket, leaving both hands free until the trigger is pulled. The integrated ladder hook lets the gun hang from a rung so the tip stays clean between beads. The built-in puncture tool and spout cutter remove the need to carry separate openers. The wrist wrap reduces fatigue on long runs, letting the user maintain steady pressure without grip strain.