Ridgid brand 1 3/8 bi-metal hole-saw part #7015, or Sears brand 1 3/8 bi-metal hole-saw part #26064. (Bi-metal hole-saw will cut through nails and screws) CRITICAL: Not all hole-saws are the same so we highly recommend Ridgid and Sears brands. If the hole-saw you are using is not one of the brands we recommend, drill a test hole in a scrap 2x4 to insure the Sure-Strike housing can be properly inserted.
AUGER, FORSTNER OR PADDLE BLADE BITS SHOULD NOT BE USED FOR THE SURE-STRIKE INSTALLATION
Ridgid brand 3/8 shank hole-saw mandrel part #7037, or Sears brand 3/8 shank hole-saw mandrel part #26087. (This smaller mandrel is required as a normal arbor has a circumference larger than the 1 3/8 hole-saw itself)
5 1/2 extender that accepts the 3/8 shank of the hole saw mandrel.
Hammer and chisel.
HARDWARE INCLUDED IN SURE-STRIKE PACKAGE:
Sure-Strike unit
Cover plate
3 1/2 screws (2)
CAUTION: In the rare case that less than 2 exists between the door-stop and edge of the doorjamb, there may not be sufficient area to install the Sure-Strike. The installer should measure this area and use caution before proceeding with installation.
