We invented the Gas Driven Impact Wrench in the 1970s. Since then,
we have continually improved its quality and reliability to ensure our Master 35 Impact Wrench remains the best of its kind in the World. The Master Wrench was specifically designed for use in a railway environment. It will remove/fit Lagscrews and Joint Bar Nuts in under seven seconds, and with our Safety Quick Release Auger Attachment can be easily converted into a Wooden Tie Drilling Machine.