Heavy-Duty Flush Trim Bits are the ultimate router trimmers Heavy-duty flush trimming bits with both bottom and top bearing guides for easier use in just about any trimming application, whether you need to locate your template top or bottom on the workpiece. These heavy-duty trimming bits are larger diameter and use thicker carbide (3.5 – 4.0mm) tips than standard flush trim bits to remove more material quickly. With a negative shear on the blade, they provide a smoother finish on timber edges than standard trimming bits. Specifications: SKU Cutter DiameterMetric Cutter DiameterImperial Cutting HeightMetric Cutting HeightImperial Overall LengthMetric FTHD-19-BH 19.0 3/4in 25.4 1in 71.6