I recently purchased this socket piece and it has been a game-changer for my industrial projects... As a result of using this product I found that it provided a great grip and held tight to the screws. The ProHold feature was especially helpful when working on tight spots. The only con i found was that it is A bit pricier compared to other socket pieces. Overall, I'm very satisfied with this purchase and would highly recommend it to anyone in the industrial and scientific fields!
Nice set. Bits cannot be inserted into their corresponding sockets until you lightly file each green "cool" point. On their website you can see that these bits are of the highest quality and designed for the professional mechanic.