This unit works great. Switches from Hammer to Hammer Drill easily. Uses the 18mm diameter SDS-Max bits. The chuck works perfectly to change and hold bits properly (Last pictures showing the bit style and in/out of the chuck. Even the cord is in perfect condition. This unit would easily cost over $220.00 in it's shape, but we're selling locally with no tax or shipping. Call (952)854-5 seven eight six
Extra words; Concrete Construction Masonry Demolition Work.