I would suggest using the UPCUT (1/2" ) Spiral Flush Trim Router Bit.
The standard straight bit work with a chopping action unlike a spiral bit..
that's to say the straight bit hit the stock flat on the blade...think of it
like a drill bit...it pulls the chips out of the way..(Skew Angle/Helix)
You don't need the bearing on the bit but they make it easy to setup the bit for
edge jointing boards on the router table..
Spiral Flush Trim Router Bit
Get state of the art results in flush trimming, pattern or template work.
The 2 flute solid carbide spiral bits have two ball bearing guides.
Great for use where chip-out is a concern with plywood, melamine or other laminate surfaces.
Downcut bit is for hand held router applications. Upcut bit is for table mounted router applications.
Overall length for 1/4" bit is 3" and for 1/2" bit is 3-3/4".
As seen and recommended in WOOD® Magazine (#158).
Spiral Upcut and Downcut Router Bits
2 flute flat bottom cutters.
Top quality micrograin solid carbide.
Will cut faster, smoother and stays sharper longer.
Produces a very clean, fast and accurate cut with minimal chatter.
Upcut spiral helps remove material.
Ideal for making mortise and tenon joints.
Downcut spirals help hold the material in place while using handheld routers.
Will plunge cut and plane edges.
Eliminates chipping at the top of the cut.
Ideal for soft & hard woods, plywoods & composites, laminates, plastics and some non-ferrous metals. http://www.mlcswoodworking.com/shops...ushtrim_anchor