The pneumatic nailer Q550 is a professional precision tool specially developed for the installation of 3/8" to 3/4" solid and engineered hardwood flooring. Weighting only 8.7 pounds, this ergonomically designed tool makes the installation of hardwood floors very easy, allowing the operator to set and nail the boards in the standing position. It uses standard L- type 18GA cleats. Do not exceed 90 psi when using the tool.