The D2 ‘Stacked Mill’ is the first choice for busy workshops, schools and colleges needing maximum sheet rolling width and a full range of wire reducing grooves (with groove indicator) from as much as 15mm initial material size down to 1mm square. The machine has two sets of rolls, one for sheet (extended for D shapes) and the other grooved for square wire. These are set in high quality maintenance free bearings and are guaranteed for life. As with the whole of the Durston range of mills, the rolls are of the highest quality alloy steel hardened to 63 / 64 Rockwell C and ground to perfection. Excellent gearing ratio offering reduction of 7 – 1 for sheet and 3.5 – 1 for wire, allowing smooth manual operation. Calibrated disc in central easy to read position. Extremely versatile and very rugged in construction, this machine is very simple to use with full control over roll passes for both sheet and wire.