picture of a screw extractor and matching drill set...http://www.huot.com/body_11bottom.html Home Depot, Lowes, Builder's Emporium, etc should have extractor kits that have matching drill bits and extractors. They also sell extractors separate. ~$3.00 each.

Use one that is smaller than the smallest portion of the shaft. Make sure the drill/extractor is centered and will not touch the female side. TAKE IT SLOW. The extractor you will be using is very small and can break.

Practice first. Take a similar size screw and attach it to a piece of wood. Drill out or strip the head of the screw. Follow the procedure above.

If you are leary of doing it, ask someone near you for help. It takes about 2 minutes, if you know what your doing.

Finally, buy a full set of metric everything. Japanese companies never uses english.