How to Cut a Shielded Padlock

How to Cut a Shielded Padlock
Written By
Nathan Fisher
Nathan Fisher
Published: Jul 28, 2011
Updated: Nov 20, 2021
1 minute read

Designed specifically to guard against having the shackle cut, shielded padlocks are constructed with a guard plate, or “shield,” surrounding the top of lock. Where the shackles of most unshielded padlocks are easily defeated with a saw or bolt cutters, cutting a shielded padlock requires a different approach.

Things You Will Need

  • Drill
  • 1/8-inch drill bit
  • 1/2-inch drill bit
  1. Drill a pilot hole into the center of the keyhole slot on the bottom of padlock with a 1/8-inch drill bit.

  2. Cut through the lock’s tumblers. Insert the tip of a 1/2-inch drill bit into the pilot hole. Drill into the lock cylinder at slow speed until the bit has cut 1/2 inch into the lock.

  3. Look inside the cylinder for a slot running across the top of the width of the keyhole. If the slot is not visible, continue drilling into the keyhole, with the 1/2-inch bit, in 1/8-inch increments until the slot becomes visible.

  4. Open the lock. Insert the tip of a flat-head screwdriver into the slot in the lock cylinder and turn the handle of the screwdriver.

The Drip Cap

  • If a padlock’s key is lost, calling a locksmith out to make a new key is usually cost prohibitive; replacing the key will almost always cost more than the lock is worth.
  • Where the shackles of most unshielded padlocks are easily defeated with a saw or bolt cutters, cutting a shielded padlock requires a different approach.
  • Insert the tip of a 1/2-inch drill bit into the pilot hole.

Resources

Photo Credits

Stockbyte/Stockbyte/Getty Images

Stockbyte/Stockbyte/Getty Images

Nathan Fisher

Nathan "Guide" Fisher began writing in 1997. A pilot and avid outdoorsman, Fisher has written articles on aviation and outdoor recreation, and produced marketing materials for “The Great Outdoors NETWORK!” Fisher holds bachelor's degrees…

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