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CUTTER
Cuts the spout of caulk tubes. The cutter on model 250 is the only one of its kind. -
HEAT TREATED DRIVE ROD
Drive rod has been heat treated to a proprietary hardness for increased strength and durability. -
LADDER HOOK
The dispenser either has a ladder hook built into the end of the push rod or comes with one to attach to it. -
POKER
Equipped with a poker to break the seal on the end of caulk tubes. -
ZINC CHROMATE
Zinc Chromate plated for increased life and protection from rust and pitting.
Description
The Newborn 307 is a rugged ratchet rod caulking gun designed for everyday sealing and general-purpose applications. Featuring a 6:1 thrust ratio, it delivers controlled material flow for standard-viscosity sealants like silicones, acrylics, and latexes. Its zinc chromate finish and dependable ratchet action make the 307 a reliable choice for both professionals and DIYers tackling routine caulking jobs.
Key Features
6:1 Thrust Ratio for Controlled Dispensing
The 6:1 thrust ratio provides balanced mechanical advantage, helping maintain smooth, consistent extrusion of sealants with manageable hand effort.
Ratchet Rod Cradle Design
The ratchet-style pressure rod keeps the rod engaged after each trigger pull, minimizing back-off and improving control during dispensing.
Zinc Chromate-Plated Frame
Durable zinc chromate plating offers corrosion resistance and enhances durability for extended use in a variety of conditions.
Built-In Spout Cutter and Seal Puncture Tool
Integrated opening tools allow quick and clean cartridge preparation without the need for separate accessories.
Ladder Hook for Convenience
A ladder hook lets you hang the gun on ladders or work surfaces for easy access during jobs.
Standard 10 oz Cartridge Capacity
Designed to fit standard 10 oz (1/10 gallon) cartridges, ensuring compatibility with commonly used sealants and adhesives.
Why Youโll Love It
The Newborn 307 delivers dependable performance with steady control and durable construction. Its balanced thrust ratio, ergonomic ratchet action, and built-in convenience tools help you lay neat, consistent beads on everyday sealing, trim, and general caulking tasks.







