Sole UK Supplier of ALFRA Punching, Bending and Cutting tools Machines and Tools for Panel Building, ... Punching Equipment, Sheet Metal Hole Punching Tools. The locking system is efficient, using a pulling motion rather than a pushing motion, allowing you to be closer to the tool when working with large coil. The metal bending machines’ individual bending handles allow you to get closer to the work compared to loop-design handles that can inhibit proximity. Sheet metal folders and sheet metal rollers. About RDG Tools. RDG Tools was started up by Richard Dickinson in 1992. We started exhibiting at model engineering exhibitions in 1994 and realised from the shows that people wanted quite specialised tooling for their machines and also a wide range of tooling which they could adapt to suit their needs.