Need a long router but hinge template

[barnsley7]

I can't find a long router bit for use with a hinge template.

I'm using a JCB RO2100 1/4 1/2 inch router.(I have a sleeve so can use either).

It doesn't plunge far enough to reach the wood at maximum plunge depth.

I've been looking for hours and asked AI many times but I can't find one cheaper than £40.
Ideally want one under £15.

All searches default to quarter inch which are usually too short. I think I need at least 70mm shank .

Any ideas?
Thanks

 

[big-all]

do you mean lock???

a lock will be around 3" needed hinge about 2mm needed in depth

you can only safely have around 12mm shank showing so around 12mm greater than the collet to full depth
in other words a cutter 12mm out the collet that will be say 2mm above the base will add 10mm to the total depth the cutter will cut so a 2.5"/63.5mm cutter will give you 73mm deep with multiple plunges and passes