DO NOT TRY THIS AT HOME : Text files and message bases are for INFORMATIONAL PURPOSES ONLY. Do not undertake any project based upon any information obtained from this or any other web site.We are not responsible for, nor do we assume any liability for, damages resulting from the use of any information on this site.This is my first egg but this cheap pick is able to open the very secure tubular 7 and 8 pin lock often used on vending machines and laundrymats. While making this pick it is very helpful to have a tubular lock. they are cheap, I got one on e-bay for like $3 for this project. Sorry coudnt find a measuring tape so nothing is measured, just guess at it and if you have a lock you can take the measurements from that.