Lock guide

S&G 6730: opening it without drilling

What the lock is, whether a safe autodialer covers it, and what the job actually looks like from setup to open.

A Group 2 combination lock opened to show its wheel pack and lever — A Group 2 lock body with the cover off — the wheels and lever an autodialer works against.

The lock

A three-wheel Group 2 mechanical dial lock from the 6700 family — one of the most common locks fitted to commercial safes anywhere in the world.

Group 2 mechanical combination lock
Three wheels
Dial turns left
Roughly a million theoretical combinations

Does the AutoDialer V4 open it?

The machine is built for Group 2 mechanical combination locks, three-wheel and four-wheel, with the dial turning either direction. A lock of this type falls inside that range.

The 6700 family is the reference case for this machine: three wheels, a standard dial, and a combination space that the coarse sweep covers in about 50 minutes. Most openings on locks of this type finish well inside the average of around two and a half hours.

We would rather turn away an order than take one we cannot deliver on. Send a photo of the dial and the model number and we will confirm before you buy — and if the lock is outside what the machine handles, we will tell you that instead.

An American Security safe open with the AutoDialer V4 still attached to the dial — The finish line on a Group 2 job: open, and nothing about the lock changed.

What opening it looks like in practice

Mount the machine coaxially with the dial on the magnetic base and check by hand that it turns tight, smooth and without slip.
Select the number of wheels, the dial direction and the coarse step, then start.
Walk away. The coarse sweep on a three-wheel lock covers the whole range in about 50 minutes.
If it finishes without opening, step down to the next finer setting and run again.

The safe is undamaged throughout, keeps its original lock, and keeps whatever certification it carried. Full timings are in how long an autodialer takes on a Group 2 lock.

What it will not help with

If the safe has an electronic keypad rather than a dial, or a time lock, or the lock's internal mechanism is already broken, a dialling machine is not the answer. A photo will usually settle which situation you are in.

Not sure whether it covers your lock?

Send a photo of the dial and the lock model. We'll tell you honestly whether the AutoDialer V4 handles it before you spend anything — and if it doesn't, we'll say so.

Ask the assistant & get a quote Leave your contact details