KOI Step Series DGH-KOI INC the preeminent manufacturer of diamond knives is excited to announce a new addition to the KOI Step Series. The MI4, a multi incisional diamond knife for paracentesis, groove, LRI and tunneling. The titanium handle will accommodate any 1mm to 3.5mm wide diamond blade, perfect for LRI and the new smaller incisional techniques. Step settings are .3mm, .5mm, .55mm, .6mm. The MI 1405 is a perfect universal blade option: 1mm wide, sharp sides, Smart Lance. The MI series starts as low as $695.00.