Features and Benefits:

• For use in restricted areas
• Ideal for use where a T handle won't fit
• Sockets fits all number and fractional M.C.T.I. standard taps through 1/2 in.; also fits 1/8 in. NPT taps and metric taps through 12 mm manufactured to M.C.T.I. standards
• Black oxide finish

This is a #11-tap socket. It is 1/2 in. drive. It is for 3/4 in. taps.