WHAT IS COUNTER BORING? short #41 tubalcain counterbores

You are watching #34 of my "SHORT SUBJECT" video series. Here is a link to my SHORT SUBJECT PLAYLIST-- • SHORT SUBJECTS    • SHORT SUBJECTS   Also, watch this popular video--- SIZE MATTERS ALORIS QCTP short #26 tubalcain • SIZE MATTERS ALOR... Please like & subscribe & watch my 1400 other machine shop videos. #dialindicator#testindicator#brown&sharpe#mitutoyoindicator#shars#DORIAN#phaseIII