These hammer extenders are great value for money and come with a holder tray that's easy to slip into your tool box. My only complaint is that they don't have a bevel or bevel on the entry side. So sometimes when you try to fit one of these to your impact wrench it won't work and you have to push really hard to get it in, especially if your impact wrench has a pin fuse. In general I like them although they are of decent quality but for the reason mentioned above; Now I only use them with my ratchets and have had to get other percussion extensions.