Steel revolving frame caulking gun for 1/10-gal. cartridges. Thrust ratio of 18:1 for use with acrylic, adhesives, asphalt, butyl, and cement. Revolving frame allows cartridge to rotate for maintaining bead orientation when caulking around corners. Smooth pressure rod requires less force and is quieter than a ratchet-style pressure rod. Zinc alloy handle and trigger for corrosion resistance. Professional-grade high-thrust ratio caulk gun.