Contains your choice of five countersinks with 3/8-in. cutting diameters and matching taper point drills, in a foam insert cardboard container. Also includes: 1 - 3/8-in. plug cutter with 1/4-in. shank, 1 - 3/8-in. stop collar and 1 - 3/32-in. hex keys to fit countersinks and stop collars.