The Muro M-TFDVL41 Coil Auto Feed Tool is a one step system - no pre-drilling required collated screw gun designed for upright operation. Absolutely ideal for commercial flooring, decking, and subfloor applications whilst saving your back! The Muro M-TFDVL41 stands alone with capability to take on any jobs providing versatility that meets all construction fastening requirements. Attach the extension handle and the M-TFDVL41 is an ergonomic worker for stand up operation! 150 screws per coil, means no more dropping screws! Durable and rugged design, adjustable countersinking depth, 6 to 10 gauge screws, low vibration, and the only TRUE quality upright collated screw gun on the market! The M-TFDVL41 provides amazing labour savings on the job, which is why it is the contractors choice!