For grinding HSS and carbide engraving cutter as well as single-lip or multiple-lip cutters of various shapes such as radiused cutters or negative taper angle of cutters.The universal index head is provided at 24 positions so that any particular angleor shape can be obtained, free 360° or 180° rotation is allowed.For grinding end mills, twist drill, lathe tools, only replace the attachment to the index head without any complex setup.