I have used these heads on engine and brake work and they have proved remarkably strong and durable. The chrome finish is very good and the socket fit for a quicker fit is excellent. The socket guide is not a "grab and remove" device, you must twist and pull to remove the socket. This type of lead is best left for a tool bag in a landfill, so that's where it's going. Outlets are around $5-6 and it's free so I'm not complaining.