ITEM NAME:30 Degree & 22.5 Degree Chamfer Edge Forming Router Bit - 1/4" Shank 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.