So you have had trouble drilling straight in the past? With BullseyeBore at your disposal, you don’t have to worry about that. It projects lasers on your work surface and tells you when the drill is perpendicular to it. BullseyeBore works in any orientation and with any drill.
BullseyeBore uses a laser guide to let you know when are dealing with a minor or major misalignment. The device also provides you with visual cues about drill bit depth. More information is available here.