With stable 8mm shaft 32mm shaft length for all popular router with 8mm chuck all cutters are always correctly stored and easy to find in the high quality and modern wooden cabinet all cutter have a ball bearing which enables an optimum cut and free angle high accuracy highest quality for clean cuts max speed up to 30 000 rpm hard metal included the versatile assortment fulfills all requirements contents 4 x groove cutter 1 x flush trim cutter 4 x notching cutter 4 x chamfering cu