Centres the knife in the device to achieve maximum symmetry and thus the optimum result, centres and fixes tapered blades, additional stop for high knives, e.g. kitchen cleavers, a slightly convex cutting edge can be formed by a movement between the two stops, robust construction: cast zinc clamps, stops made of fibreglass-reinforced composite material, perfectly balanced. A slightly convex cutting edge can be formed by moving between the two stops, robust construction: clamps made of cast zinc, stops made of glass fibre reinforced composite material, perfectly balanced: most of the weight is distributed over the clamps, which enables a particularly well-balanced sanding process, glides along the universal support with little friction and therefore very smoothly, can be combined with Tormek T-4 and Tormek T-8 as well as older models.