hjns wrote:Doctorbass wrote:It is normal that you killed some drill bit since the metal of these torque arms is domex wich is similar to the one used in the tools... and normal quality drill bit !
No prob to drill holes but they must not be too close to the corner of the axel slot. preferably closer to the external diameter.
I drilled two M5 holes into DrBass' TAs and then threaded them M6. No problem, as long as you use the right tools. I used a vertical press drill with cobalt - steel drill bits. I took one of the axle washers and positioned it where the axle would be. Then drew a circle around it. I positioned the drill in such a way that the holes are 1mm out of the circle to make sure the bolts would not interfere with the washers. When drilling, I cooled using some cheap ATF mineral oil.
Sure Henk, i know it is possible to do it given the right gear, I was in a bind of wanting to get out riding and not having the money to get a proper drill. So i was wondering whether a couple of variant designs incorporating m5 holes would open a great market for our good doctor here. Don't mean to add complication just its easier to use a common drill and bit with the torque arm as a guide to drill through the alu than it is to go through the torque plate itself.
will use a proper cobalt bit next time and a better drill press. Seriously though Doc a couple of water jetted holes to help us make these even easier to fit. Thanks