1.New designed strong&light die cast aluminum/magnesium body 2.Drive standard 15 degree wire-collated roofing nails from 3/4" to 1-3/4" in length 3.360adjustable exhaust cover,allows air to be directed away from the operator and the materials being fastened 4.High impact engineered plastic magazine with adjustable bottom steel plate 5.Penetration depth adjustable for avoiding stapling marks 6.No-mar tip storable in the canister:ensures undamaged wood surfaces 7.Dual action for this tool