Does anyone know if there are pattern bits available with a 1/2" shank
that have shorter cutting lengths? All of the "standard" bit
manufacturers seem to start their cutting lengths at 1" for the 1/2"
shanks. Unfortunately, this won't do for my project as my template is
1/2" and I need to route out less than 1/2" from the work piece. I
would like to stick with 1/2" shanks if possible, to avoid having to
change my collet and because 1/2" shanks are sturdier.

I did find one set from Pat Warner, but the set is spendy and I really
only need one bit (I already have longer pattern bits)

Thanks,
Mark