Theyre made of thin steel and are nickel plated and heat treated for long use. 4 stalls in one wrench, can be applied to a variety of nuts. These cone wrenches are designed for the home mechanic or occasional user. Their small size makes them ideal to carry along for quick repairs. Used For Bicycle Wheels & Pedals. Universal Tool.
Fits four headset race sizes and is well made. Good quality. Not used often as only needed when working with headset bearings, but necessary because adjustable wrenches won't get the job done as they get in the way of the locknut. I would recommend it.