The primary risk for the drill user are potential recoil torques. Recoil torques are caused by increased torque output from the drill, due to increasing drill bit friction in the drilled hole in the event of:
Deep drilling
Drilling large diameters
The drill bit jamming in the drilled hole or when being removed from the workpiece
The drill bit – and consequently the power tool – jamming can lead to especially large, dangerous recoil torques.