Abstract: A guide device for pilot hole drill bits for use with hardware items having countersunk screw holes, wherein the device provides a drill bit holder which is reciprocably mounted in a body member on a drill axis and which is formed with an abutment end portion, wherein axial position adjustment structure is provided for allowing the end portion to contact the angled wall surfaces of a countersunk screw hole on a plane which is oriented normal to the axis of a screw hole and the drill axis, wherein the body member lies flat on the upper surface of the item.

Abstract: A monitoring and alarm system for detecting excessive bleeding from medical patients and for alerting medical attendant(s) thereof, the system comprises a relatively thick sheet-like base of electrically non-conductive, blood porous material having a proximal side adapted for mounting directly on a patients skin or on a porous protective gauze or bandage or the like thereon at a site on the patients body where heavy bleeding can occur due to inadvertent opening of a wound or incision, or due to inadvertent extraction of a syringe, I.V. tube, catheter or the like, the base has a distal side, a normally open electrical circuit positioned adjacent the distal side and spaced from the proximal side a predesigned distance, electrically actuable visual, sound or physical alarm electrically connected into the circuit, and electrical switching for the circuit responsive to contact with blood to close the circuit and actuate the alarm to alert the medical attendant(s) to the excessive bleeding.