Step 9: Drill the Strike-Plate Mortise

Drilling the Strike-Plate Mortise
Photo: David Carmack
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Use a 7/8-inch spade bit to drill two partially overlapping 5/8-inch-deep holes, centered above and below the midpoint (inset). Square up the sides of the mortise with a chisel, if necessary.

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    Tools List

    • drill
      Electric drill or cordless drill-driver
    • spade bit
      7/8-inch spade bit
    • keyhole saw
      2 1/8-inch hole saw
    • 3/16 masonry bit
      3/32-inch drill bit
    • Phillips screwdriver
      Phillips-head screwdriver
    • 16-foot tape measure
      Tape measure
    • chisel
      1-inch chisel
    • utility knife
      Utility knife
    • hammer
      Hammer
    • combination square
      Combination square
    • Awl

    Shopping List

    1. RADIUS-CORNERED LATCH PLATE

    for factory-mortised doors



    2. LATCH ASSEMBLY WITH SQUARE-CORNERED LATCH PLATE

    3. CARDBOARD TEMPLATE

    included with lockset



    4. RADIUS-CORNERED STRIKE PLATE

    for factory-mortised jambs



    5. SQUARE-CORNERED STRIKE PLATE

    6. DOORKNOBS

    7. WOOD SHIMS