Industrial quality. For use on asphalt shingling, waterproof tar paper, fiber cement roofing and siding, vinyl siding, and new or re-roof applications. Magnesium housing for durability. Front fixed exhaust. Quick-set adjustable depth control. Single action side load canister. Tool free adjustable shingle guide. No nail-trip lockout mechanism. Rubber ski-resistant pads. Full round driver for more consistent drive quality. Contact trip operation. Accepts 3/4" to 1-3/4" galvanized coil roofing nails. Couplers not included.