Manual surgical cutting instrument (102) for cutting bone material with a surgical blade for bone cutting shaped to fit the surgical cutting instrument, comprising: a body that can be grasped by hand to manipulate the cutting instrument； a blade coupling mechanism (116) attached to the body and which is configured to join the surgical bone cutting blade, the knife coupling mechanism comprising: a first coupling element (118) that includes a first contact surface with the blade (130) and a first outer perimeter side wall (132) adjacent to the first contact surface with the blade； a second coupling element (120) that includes a second contact surface with the blade (160) oriented towards the first contact surface with the blade of the first coupling element, the second coupling element including a second outer perimeter side wall (164) adjacent to the second contact surface with the blade, the second contact surface with the blade and the second outer perimeter side wall being found to define an outer edge (168), the second coupling element including a perforation (156 ) through the second contact surface with the blade, the perforation and the second contact surface with the blade being found to define an inner edge (166)； and blade engagement prominences (172) protruding from at least one of the contact surfaces with the first and second blade, the prominences being separated closer to the outer edge than the inner edge； characterized in that the first coupling element comprises a rod (126) extending from and normal to the first contact surface with the blade, in which the rod is slidably accommodated and extends through the perforation in the second contact surface with the blade, and the rod further includes a blade housing recess (146).Instrumento de corte quirúrgico manual (102) para cortar material óseo con una cuchilla quirúrgica para corte de hueso conformada para ajustarse al instrumento de corte quirúrgico, que comprende: un cuerpo que puede agarrarse con l
