Here’s what you need to know:
- There are two methods of making a key: Duplication, and Origination. Duplication makes an exact replica of the key that you already have. Originating a key uses the specific measurements (we measure in .001″) and a separate machine to cut a key “by code.” This is the best way to make a key, but is much more time consuming than a duplicate.
- Every manufacturer uses a different keyway (the slot that your key slides into.) This is why you can’t insert a Kwikset key into a Schlage lock. Every key then has different specifications. Most residential keys have 5 cuts (or valleys) in them. The different valleys are deeper/shallower because the pins in the lock should be different lengths. After years of using the same key in a lock, the key will experience some level of wear. Once the cuts are worn deep enough, they will not hold the pins up high enough to allow the lock cylinder to turn. When this happens, it’s time to make a new key. This is where origination comes in, because if you make a copy of a key that doesn’t work, the copy isn’t going to work either. Hardware and home improvement stores can copy a key, but they can’t originate. Best practice then? Keep a separate key that is used only for copies, not for operating the lock. This will maintain the correct profile of the key, and every copy you make will be like a brand new originated key.
- Are you driving a vehicle with the only key you have? You should get some copies made. If you lose that key, originating a new one takes a lot of time and effort. Most Locksmiths in this area charge around $200.00 labor to originate a new key for a vehicle, plus the parts (and programming if it’s a chip key.) To duplicate a standard key is $2.50 labor, and you can do it on your preferred schedule, instead of waiting for the Locksmith to show up so you can head to Thanksgiving dinner. Hide an extra key somewhere on your vehicle for rainy days so you don’t get locked out. Same idea with your house.