How to re-drill an adapter base or sub-base
With some makes of router, it may not be possible to drill the sub-base to allow direct fixing. If this is the case, the sub-base will be supplied with two M6 pan head screws, and will require alternative fitment.
Alternative Fixing Methods
1. If the router base will accept a nut and bolt in the position of the drilled sub-base holes, centralise the sub-base on the line-up pin, mark hole position through it, and drill out the router base.
2. If the router base is made from aluminium or plastic with a thickness of 6.35mm (1/4¨) or more, an M6 threaded hole can be tapped in. The position for tapping the holes, should be marked through the sub-base after centralising it.
3. Should there be no fixing points and bolt fixing is not possible or desired, double-sided tape (Ref. DS/TAPE) can be liberally applied on the sub-base can be used to hold it in position. Tight clamping is needed to make sure tape is securely mated.
Periodically check sub-base is concentric to collet and reset if necessary.