the drill bit 20 moves the set screw 58 along the arcuate portion of the depth notch 38 until the set screw 58 moves into the longitudinal slot 34 once the drill bit 20 is pulled completely away from the wall the coil spring 26 forces the set screw 58 along the longitudinal slot 34 until the drill bit 20 is completely retracted in this manner the anchor set tool 10 automatically retracts the drill bit 20 after drilling to place the anchor set tool 10 in a configuration for inserting an anchor screw not shown to begin driving an anchor screw the screwdriver bit 70 is inserted into the small diameter upper bore 76 of the attachment cap 24 until the screwdriver bit 70 extends into the large diameter lower bore 74 of the attachment cap 24 the set screw 84 is then tightened into the attachment cap 24 until the screwdriver bit 70 is locked into place within the small diameter upper bore 76 of the attachment cap 24 the attachment cap 24 is then placed over the driver seat 60 and positioned so that the screwdriver bit 70 fits snugly within the socket 68 of the driver seat 60 and the o ring 82 is in contact with the body 12 of the anchor set tool 10 preferably the diameter of the large diameter lower bore 74 and o ring 82 of the attachment caps 24.