Rob Studdert indicated I should be using a Crosspoint screwdriver to get the screws out of my defective lens. After asking for an explanation of the difference between JIS Crosspoint and Phillips I did an extensive net search and finally found the following information at http://www.pierfishing.com/tackle_tips/9911.html
The Cross-Point Screwdriver Most currently manufactured reels use crosspoint screws. While they may look like what most people and screwdriver manufacturers like to call Phillips screws, they are different. The crosspoint screws are 58 degrees and have a blunt point, while the Phillips screws have an angle of 55 degrees and are more pointed at the tip. Most screws now used, either for reels or in your home are cross-point screws. A Phillips screwdriver does not properly fit a crosspoint screw. Most American made screwdrivers sold to fit these screws are designed for Phillips screws. (Go Figure) Using an unmodified Phillips screwdriver, the ones commonly found at your local hardware store, will cause you to have difficulty because the screwdriver taper is longer than the taper of the screw. You must use a bigger Phillips screwdriver to fit the crosspoint screw. The improper size of Phillips screwdriver will cause the points of the blade to override the grooves on the screw and ruin the head. Since you cannot conveniently buy a crosspoint screwdriver, one modification that can be made to a Phillips screwdriver is to grind off the tip of the blade thereby shortening the taper. Powell Hargrave Nanaimo, B.C. Canada Digital Imaging http://members.shaw.ca/hargravep
