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Information on self-centering hinge drills

Components of the hinge drill
  1. Drill
  2. Removable sleeve with spring
  3. Bit holder with mechanical quick-change chuck
  4. Double bit hex 6.35 mm (PH1/PH2) - serves as an adapter and for screwing

Instructions for use
  1. Insert the double bit into the bit holder of your screwdriver or into the chuck of your drill.
  2. Attach the hinge drill to the free end of the double bit.
  3. Drill the hole for the fastening screw. The sleeve automatically centers the drill.
  4. Remove the hinge drill.
  5. Tighten the screw with the bit.