Carters Shocksafe Insulated 10lb Keying Hammer BS8020This specialist insulated keying hammer is specifically designed for use by the rail industry and is used to knock in keys when laying track. It is designed with one end that is tapered to a different size so that it can access the keys seated in the chairs that hold them. The handle of these hammers is made from fibreglass, making the handle lightweight yet strong. The handle is insulated to withstand shocks up to 10,000V, in line with the