Master Lock M1 4-Pin Depth Keys

These keys are used to cut keys by code using a standard duplicator. They will work for Master Lock 4-pin (M1) keys. These keys contain the standard depths (0-7).

Keys are individually stamped with their depth code and placed on a bead-chain as shown.

Depth keys are a great cheap/temporary alternative to using a dedicated code machine, but it can be difficult to generate high-quality keys with them.

Depth Measurements:

0	1	2	3	4	5	6	7
.275	.260	.245	.230	.215	.200	.185	.170

Space Measurements:

1	2	3	4
.185	.310	.435	.560

MACS: 4