University of Colorado Boulder

5/16 twist drill. 3/8-16 tap. center drill. sand paper. procedure: lathe turning. obtain ¾” square plastic rod. chuck in four jaw chuck in lathe. face the front of the part. center drill the hole. drill hole in center with specified twist drill as deep as you can go. tap hole on lathe in back gear as far as you can go. sawing ................
................