Never Drop A Valve Keeper Again!

How do mechanics install engine valves without losing the pieces?! ⚙️🔧
When rebuilding a cylinder head, installing the valves is one of the most tedious steps! The heavy valve spring has to be compressed perfectly straight down to expose the tip of the valve stem. Once exposed, the mechanic has to carefully place two tiny metal wedges, called keepers or collets, into a small groove on the stem. 
When the tension on the compressor tool is released, the spring pushes up and physically locks the keepers in place! If you drop one of these tiny pieces while working, you might never find it again, bringing your entire engine rebuild to a complete halt!