Safes and Vaults

Combination and electronic locks, what the UL and RSC ratings actually promise, manipulation, drilling and safe moving done without hurting anybody.

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4 topics, 12 sections. Free, no account needed. Work through them in order or jump to what you need.

01

Ratings and What They Promise

Safe marketing is close to meaningless without the ratings behind it. The word fireproof is not a rating. The word burglary resistant is not a rating. Learn the small number of real labels and you can tell a customer in thirty seconds whether the safe they bought does what they think it does.

  • RSC means five minutes against one attacker with hand tools. TL 15 means fifteen against a skilled one.
  • The x6 suffix means all six sides were tested, not just the door.
  • Class 350 protects paper. Digital media needs class 125.

Covers Burglary ratings, Fire ratings, Fire and burglary are different problems.

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02

Locks on Safes

Safe locks fall into two families. Mechanical combination locks turn wheels behind the dial. Electronic locks read a keypad and drive a solenoid or motor. Both are genuinely secure when specified properly and both fail in ways you should be able to diagnose over the phone.

  • Four left, three right, two left, then right to open. Skipping a revolution leaves a wheel unpicked.
  • A dead battery never erases an electronic combination. It only stops the motor.
  • Repeated wrong entries trigger a penalty lockout that gets longer if you keep trying.

Covers Mechanical combination locks, Electronic safe locks, Redundant keys and key override.

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03

Opening a Safe

Safe opening is a specialty inside a specialty. It is slow, it is quiet work, and it rewards patience more than force. Most professional openings are done either by manipulation, by a scoped drill point, or by recovering the combination from records that everybody assumed were lost.

  • Records, defaults and the override come before the drill, every time.
  • Manipulation reads gate positions through dial resistance. Modern locks resist it deliberately.
  • Hardplate and relockers punish a wrong drill point. Use the published diagram.

Covers Ask before you drill, Manipulation, Drilling and repair.

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04

Moving Safes Safely

More locksmiths are injured moving safes than doing anything else in the trade. A gun safe is commonly seven hundred pounds and a small commercial TL rated safe can exceed two thousand. Weight that will not hurt you standing still will absolutely hurt you tipping over.

  • Walk the whole route and measure before touching the safe.
  • Transitions are where safes fall. Slow down, stay strapped, nobody downhill on stairs.
  • Removing the door can take away a third of the weight and improve the balance.

Covers Plan the route before you touch it, Equipment and technique, Anchoring and knowing when to refuse.

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