The Lisle Corp. 70500 Tap Socket Set is ideal for use in areas where a T-handle won't fit. This set features eight sockets that fits all number and fractional M.C.T.I. standard taps thru 1/2". These tools also fits 1/8" NPT taps and metric taps through 12mm manufactured to M.C.T.I. standards. The sockets come contained on a vinyl holder.