Power Drill Alignment and Depth Measurement Device

A method of determining the angle or depth of a drill bit with respect to a work piece surface, the method comprising:

• inserting the drill bit into a drill chuck;
• mounting a holder onto the drill chuck, the holder being capable of moving with rotation of the drill bit;
• attaching a signal source to the holder, the signal source being capable of moving with rotation of the drill bit and of generating an image that changes with angle or depth changes of the drill bit;
• generating the image while drill is in use;
• and
• using the image to orient the angle of the drill bit or to determine the depth of the drill bit with respect to the work piece surface.

A drill having a means for aligning a drill bit or determining its depth with respect to a surface to be drilled, the drill comprising:

• a drill chuck;
• a signal source attached to or integral to the drill chuck, the signal source being capable of projecting a light beam onto the surface being drilled or onto a reference surface;
• and
• wherein the light beam creates an image on the surface or on the reference surface and the image can be used to assess orientation or depth of the drill bill with respect to the surface being drilled.