I made a tool some time ago (works perfectly) but I entirely overlooked accounting for 'torqueing up' and counter holding the pivot spindle.
Hence i'll be boring through the centre, and also making a 1/2" drive torque up tab to weld on.

The question is: Could somebody with a genuine tool tell me the distance between the hole centres of 1/2" drive and castlated tool itself ?

Any help greatly appreciated,
Tom

50mm,
Head race bearing tool shown as well in case you want to make one.

Excellent, you sir, are a gent!

Thank you arsey30, I couldn't have asked for a better response than that! I thought it may have ended up as one of those threads that disappears into obscurity.

Tom