How to Use a Key Cutting Machine

At one time, making duplicate keys required hand grinding or filing a key blank. The method was difficult to master, and only a locksmith could do the job accurately. Today's technology makes creating a duplicate key quick and cost-effective. Hardware stores are now equiped with automatic or semiautomatic key-cutting machines, which are able to follow the shape of the teeth along the key while grinding the blanks into precise copies.

1
Insert the original key in the vice with the teeth facing upward.

2
Insert the blank key into the second vice, where the cutting machine blade is located.

3
Close the protective cover and activate the machine. The micrometer will trace the original key. It automatically controls the angles and depth of the high-speed cobalt blade.

4
Once the duplication is complete, turn off the machine and remove both keys. Use the high-speed wire brush to polish off any rough edges or spurs.

5
Place the new key and the original against each other and compare. They should be an identical match. If not, another key may need to be cut.