Abstract: An intraosseous (IO) access assembly includes a driver defined between a proximal driver end (PDE) and a distal driver end (DDE). The driver defines a gripping portion between the PDE and the DDE. A stylet extends from the DDE of the driver. The stylet extends between a proximal stylet end (PSE) and a distal stylet end (DSE). A catheter hub is removably couplable to the driver at the DDE. A catheter extends from the catheter hub. The catheter extends between a proximal catheter end (PCE) and a distal catheter end (DCE). The catheter defines a longitudinal opening at the DCE. The stylet extending from the DDE of the driver is selectively received through the catheter hub and the catheter. The stylet having a tip defined at the DSE and extending through the opening at the DCE. The intraosseous (IO) access assembly forming a cutting tip at the DCE and DSE.