| 摘要 |
The drill for bone surgery comprises a lateral cutting edge (7), in relation to an axis (10) of rotation for drilling a hole, limiting an anterior surface for chip removal, considering a direction of rotation of drilling (Rd), and additionally limiting a clearance surface (72) situated in a posterior position and having a lateral relief (73), for compacting the wall of the hole, in the form of a screw thread section presenting a negative axial pitch, in consideration of the direction of rotation of drilling (Rd). |
