Slim Line lock picks were designed especially for European and Japanese locks, which have longer, narrower keyways than most pin tumbler locks found in the U.S. We've found that these "Slim Line" lock picks work well on all U.S. pin tumbler locks, especially those with small or narrow keyways. Traditional European and Japanese locks are designed similarly to USA made locks with one exception...there is less room to work in. Using picks that are specifically designed for longer, more narrow keyways with smaller tool heads and a sleek, slim shape will make the job much easier. Our slim line lock picks are a perfect addition to every locksmiths toolbox. All of our slim line lock picks are crafted from top grade hardened spring steel to withstand bending and are rust proof. All of our lock pick sets come with a FREE top-grain leather case. Take a look at our selection of standard lock pick sets designed for USA made locks here. Individual replacement slim line picks can be found on our "Build your own Tool Kit" pages.