The D-12239 Flush Trim Bit (9.5 × 25.4 × 6 × 32 mm) is a woodworking cutting accessory designed for use with a compatible router to trim and shape wooden surfaces accurately. It is commonly used to trim excess material flush with an existing edge or template, helping produce smooth, even, and consistent finishes. The dimensions typically indicate a 9.5 mm cutting diameter, 25.4 mm cutting length, 6 mm shank diameter, and 32 mm overall length. The flush trim bit is useful for cabinet making, furniture manufacturing, laminate trimming, edge finishing, and template-guided woodworking applications. It helps maintain the shape and dimensions of the reference edge while removing unwanted material. Before use, ensure that the shank is compatible with the router collet, secure the workpiece properly, and follow the manufacturer's recommended operating speed and safety instructions.