Model Building and Engraving Set includes 34 industrial tools respectively dental quality bits and cutters such as 1 diamond grinding bit, 1 fine miller, 0.5 and 1.0mm micro-drills, 1 brass brush, 4 high-grade corundum grinding bits (cylinder, sphere, disc and cone shaped), 1 saw blade, 4 grinding wheels (2 corundum, 2 silicon carbide), 20 cutting discs and 1 arbor. The 6 Micromot collets ranging from 1.0 – 3.2mm are also included with mains adaptor for 220 – 240V operation (12V, 1.0A).