Small centre point, taper tap and two main cutting edges. The Zenterfix is equipped with a guide bush incl. spring and a core drill HSS with roof tip. Tear free accurate hinge drillings. The tool steel version for uncoated soft wood. The Bormax - geometry for coated boards and limited for plastic laminated chipboards or MDF. Carbide tipped version can be used without problems for plastic coated materials. The Zenterfix will centre itself in a screw hole of a fitting or a hinge, 3577, 358202000