Dedicated Cranial Bur for Neurosurgery
The BOJIN BJ4105 is a single-function powered surgical instrument developed mainly for neurosurgery and cranial procedures. The handpiece is designed around a dedicated bur function, making it a straightforward option for surgical teams that require a specialized cranial drilling tool rather than a multifunctional platform.
Its focused configuration can simplify equipment preparation for procedures where cranial bone needs to be drilled, enlarged or reshaped with a powered instrument.
17,000 rpm for Efficient Cranial Bone Work
The BJ4105 provides 140 W of output power and reaches a rotational speed of 17,000 rpm. This high-speed operating profile is intended for efficient drilling and milling work involving cranial bone.
The combination of available power and rotational speed gives the instrument a clear role within BOJIN's System 4100 range. Actual cutting or milling performance will depend on the selected bur, surgical technique and clinical conditions.
Designed for Neurosurgical Applications
The BJ4105 is mainly intended for neurosurgery. Its working configuration is suitable for procedures in which controlled removal or preparation of cranial bone is required.
A dedicated cranial instrument can make it easier for the surgical team to match the equipment with the intended procedure, particularly when the operating room uses several different powered tools for different stages of surgery.



















