Step 4: Drill the edge bore

Drilling the edge bore of a lockset
Photo: David Carmack
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Position the tip of a 7/8-inch spade bit on the edge-bore mark made in Step 2.

Drill into the edge of the door at medium speed until the tip of the bit emerges in the face bore.

Reduce pressure on the drill to avoid tearing out excess wood, and finish drilling the edge bore.

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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