Hi, wanted to say a quick thanks for the recommendations on my drill thread, bought the Makita and very happy with it too
Managed to drill out two screws in the wheel of my guzzi that had proved impossible thus far, and so I get to my WTF?
The screws in question (philips) hold three 'spoke cover' plates to the wheel itself. See attached photo of the remains of them once i'd extracted them - are these in fact self-tapping wood-screws? The thread looks much coarser than the usual machine screw and bolt threads elsewhere in the bike.
Any idea why this thread might be used? I suppose I'll have to try and source suitable replacements, or maybe it would be preferable to fill the holes with metal filler and re-tap for machine screws. The plates carry no load; they're just decorative. Reason for taking them apart is to get the wheels powdercoated.
Oddly the screw itself hadn't got stuck in the threaded hole, it was the underside of the screw-head which had corroded/welded itself to the surface under it. DSCF1861.jpgDSCF1862.jpg