Can the tools be sharpened and is it expensive?
It is very simple and inexpensive to sharpen both the chisel and the bit. The bit can be sharpened in much the same way as a normal drill bit , using a file. To sharpen the chisel, Multico offers three sharpening kits, each suitable for sharpening a range of chisels. The sharpener resembles a countersunk bit and is used with a LOW speed power drill or hand brace. Full instructions are given in the manuals provided.