Introducing the Carbide Spiral Router Bits 1/4 in. Shank by POWERTEC. Experience the difference this bit makes in your workflow. Its optimized design ensures clean top edge, reduces heat buildup and extends tool life. Enjoy smooth operation and consistent results, whether you use a CNC router, handheld or table-mounted router with a standard 1/4 in. collet. This bit makes it easy to create detailed grooves, slots, mortises and dados. Upcut Spiral Router Bit: 1/4 in. shank, 1/16 in. cutting diameter, 1/2 in. cutting length, 2 in. total length. Downcut Spiral Router Bit: Downcut Spiral Router Bit with a 1/4 in. shank, 1/16 in. cutting diameter, 1/2 in. cutting length, 2 in. total length. Up Down Compression Router Bit: 1/4 in. shank, 1/4 in. cutting diameter, 1 in. cutting length, 2-1/2 in. total length. Premium Construction: With a sharp cutting edge and crafted from solid carbide, this tool easily powers through hardwoods like plywood, oak, and MDF while still maintaining a smooth finish. Its downcut design also ensures a pristine top surface, making it perfect for intricate woodworking projects that require attention to detail and presentation.