Klein Tools 32383SEN This convenient kit comes with 4 commonly used tap tools. For aluminum, brass, copper, plastic and mild steel. Each works easily with the quick connect in power tools. Includes a carrying case to keep your taps in 1-place for immediate access.Drill, tap and deburr in 1-easy stepFor aluminum, brass, copper, plastic and mild steelDesigned for use on up to 10-Gauge metal1/4 in. hex for easier application with quick connectHigh speed steel for added durability6/32 in., 8/32 in., 10/32 in. and 1/4-20 in. tap sizesIncludes a carrying case