ITEM NAME:30 Degree & 22.5 Degree Chamfer Edge Forming Router Bit - 1/4" Shank Router Bit Description: 30Â ° & 22.5Â ° chamfer and bevel cuts Router Bit. Two flute car.Chamfer bits are mostly used for edging, these bits can also be used to create miter joints of various angles. Cutting these angles into 2 adjoining pieces of wood will create miter joints. blade cutting smooth no burr, no edges.