1/4" (m6) x 6" Tap Extension ANSI 101 series m4 165 – C Max Tap

165 – C Max Tap Square Accepted

238 – C Max Tap Square Accepted

437 – B Max Tap Shank Accepted

242 – column C Max Tap Square Accepted

1/4" (m6) x 6" Tap Extension ANSI 101 series m4 165 – C Max TapMade in USA using USA foundry steel. Self Locking feature requires Tap Square and Shank match max accepted dims. See Detailed Size chart for all dimensions. Metric (m) size is conversion. 0. 255 B Max Tap Shank Accepted 0. 191 C Max Tap Square Accepted Easily extends the reach of thread taps. No collet or set screws. Reusable. For all machine and hand tapping applications. Extension offers smallest OD in the industry. Metric (m) size is conversion.