Caulk gun for the professional or quality conscious homeowner. Sturdy die-cast zinc alloy body but lightweight. Compact size for easy storage. Operator controls the extrusion rate with smooth effortless action. Quick pressure release. Convenient spike is attached to puncture tubes. Standard gun. Nondrip 10 oz. cartridge cradle. Mechanical advantage 7:1. Model 41001-B: Size: 10 oz, Thrust Ratio: 7:1, Frame Type: Skeleton, Frame Material: Zinc Alloy, Features: Seal Puncher, Pkg Qty: 1