The Ramset MasterShot Powder Actuated Fastener Tool is a concrete and steel fastener tool that shoots 0.22 caliber loads into its application in a single shot. It has a silencing feature, that reduces noise up to 30 percent, allowing for a quieter operation. Great for remodeling applications and attaching sill plates to concrete, MasterShot Powder Actuated Fasteners have ergonomic handle for increased comfort and can fasten up to 3in. drive pins.