I'm just a home mechanic but I've been working on a couple of old cars and recently added them to my toolbox. These are hex heads with a spherical end. , so I wouldn't use them for seriously tacky mounts. However, they certainly save for hard-to-reach places. What I like about them: They have fairly strong 3/8" plastic pins with a retaining ball and spring, just like a regular 3/8" ratchet. Most other similar products that come on a pole either only have square pins with no locking so the…