Step 2: Fit The Tip to The Keyhole

Find a blank with a tip diameter that fits into the top of the keyhole on each side of the lock. If the key's rectangular blade—called a bit—goes in and turns but doesn't throw the bolt, go to Step 5. Otherwise, proceed to Step 3.
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    Tools List

    • bench grinder
      Bench grinder (optional)
    • warding file
      Warding file
    • table vise

    Shopping List

    1. Penetrating lubricant, such as WD-40