I spent 45 minutes today hammering one of the handguards off the bars of my DRZ as the screw and the conical bit at the end seized.
The screw is still in good shape, while the end bit (see picture below) lost its thread when I removed the screw with the help of some vice grips.

I found the replacement bit (all pictured above) on eBay, but I was wondering if just the end bit (in red) is easily available to buy? They should be standard parts right?