Newborn Brothers Super Ratchet Rod Cradle Caulking Gun. The Newborn 188 Super Ratchet Rod Cradle caulking gun has a steel half-barrel frame that fits 1/10-gal. cartridges. Has a 6:1 thrust ratio for use with medium viscosity materials such as silicone. The ratchet-style pressure rod has teeth that hold the rod in place after each pull of the trigger. For thinner materials, this helps minimize drips. There is a welded plate in the back for securing the cartridge in place. A seal puncture tool and a spout cutter are built into the side of the gun for opening cartridges without a knife. The hook on the back allows it to hang on a ladder. Accommodates 10 oz caulk tubes.
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