The heavy-duty staple gun is durable and reliable. Its chrome-plated all steel construction is tough enough to survive dusty, dirty job-sites. With its bottom load channel to load staples for fast and its handle lock for easy storage, this tool has enough power to drive staples into thick dense wood, day in and day out, all day long. T50 staples are the world's best-selling heavy duty staple platform. Made to deliver exceptional holding power, these staples are used for all heavy duty stapling applications from installing insulation, house wraps and roofing underlayments to upholstering fine furniture and window treatments.