TECHNIKS Collet,ANSI Rigid Tap 19/11,0.2550"

Tap Adapter, Tap Size 1/4 In., Tap Square Size 0.191 in, Compatible with Product Type ANSI Taps, Coolant Fed Non-Coolant Through, Features Automatically Stops Spinning when Bottom is Reached, Prevents Broken Taps, Quick-Change Style, For Shank Type ANSI Tap Shank, For Use With ANSI and Metric/ANSI Shank Taps: 1/4 in, M6, M6.3