Product details:

Biscuit cutters can be expensive. Luckily you can now save space and money by letting your router do the job! This Biscuit Cutter Router Bit Set includes a special slotting cutter and three bearings sized to cut biscuit slots for #0, #10 and #20 size biscuits. Of course, it can also be used as a general-purpose 5/32'' slotting cutter. The bit has a baked-on Teflon coating to reduce pitch and resin buildup.