NR Line

 Countersink Depth Guide 
  • Drilling depth of the countersink depends on the patient’s bone quality.
  • If the bone density is D1~D2, it is recommended to drill up to the top line ( I ) of laser mark on the countersink.
  • If the bone density is D3~D4, it is recommended to drill up to the bottom line? ( II ) of laser mark on the countersink.