This heavy-duty caulk gun is designed to hold standard 10-oz tubes. It features a drip-free mode switch for clean application. The adjustable thrust ratio (10 - 1 and 20 - 1) allows for controlled output. Its rotatable barrel enables easy application around corners and edges, while the ergonomic plastic handle ensures comfortable operation. The rounded skeleton frame facilitates quick cartridge loading and removal. A built-in seal puncture tool, located near the trigger, is included to break the inner seal of the tube. This caulk gun is perfect for any job.