47166 Carbide Tipped Flush Trim Compression 5/8 Dia x 7/8 Inch x 1/4 Shank With Upper And Lower Ball Bearings

Use this flush trimming bit for laminate work or for template and pattern work. The two-bearing design allows the cutter to be used with the template mounted on either side of the work and, consequently, it is possible to cut from either direction using only one template and without moving the template to the other side of the work piece. Excellent for template work.
This is especially useful when cutting curves which run both with and against the grain
Excellent For:

Melamine
Laminate
MDF
Wood 
Plywood