MLCS 8384 Round Over-Beading Router Bit 4-Piece Boxed Set
Boxed Set includes 4 two-flute, quality Carbide-tipped router bits with totally enclosed ball bearing guides in sizes 1/8", 1/4", 3/8", 1/2" R.  Also includes 3/8" OD beaing and Allen Wrench.  All Bits are 1/2" shank.