The universal holder (head) for cutters allows the use of cutters with a conventional shank (Ø8mm.), Which are in retail sale. For this purpose, a standard collet chuck C12 (C10) -ER16-100 adapted for the "Gidmaster" jig is used. Such a head has a number of advantages, allowing the master to acquire the cutters under the ER16 collet (d8 mm shank) self-sufficiently and not to become attached to special cutters with an extended shank. There is a drawback - this is a high price.