Check the listing for details. POWERTEC 73030 Up Cut & Down Cut Spiral Router Bits Set, 2PK Standard 1/4" Shank. Condition: New. Listed at 31.99 USD. Introducing the Up Cut & Down Cut Spiral Router Bits Set by POWERTEC. INCLUDES: (1) Solid Carbide Router Bit w/ Spiral Up Cut, (1) Solid Carbide Router Bit w/ Spiral Down CutFUNCTION: Spiral bits can be used for up/down cut grooves and slots, mortises, jasper circles, dados and rabbets – The plunge cut leaves clean edges and a smooth top surface, much better than straight flute bitsAPPLICATIONS: Perfect wood cutting tools for an assortment of professional and DIY woodworking projects that require clean and sharp router cuts – Works exceptionally well with woods and hard plasticsSHANK DIMENSION: Bit cuts a 1/4” and has a 1/4” shank | Designed to help eliminate chipping on your workpiecePREMIUM QUALITY: Made with premium carbide and precision ground for proper balance and industrial quality control This router bit possesses a slow, spiral up/down cut designed to produce sharp cutting edges and smooth finishes. It’s intended for high RPM and produces much smoother cuts than standard straight router bits. This bit is made out of solid carbide, material well known for it’s prolonged working life due to their hardness factor. These bits are best utilized with hard plastics, wood composites, natural woods and solid surfaces.Up Cut 1/4” Shank Sprial Router Bit: When creating dado's and rabbets, the spiral design brings chips up and out of the cut.Down Cut 1/4” Shank Spiral Router Bit: The design leaves a smooth surface when trimming the edge.For many professionals, up/down cut spirals offer the optimal stability for the thin workpiece. POWERTEC is a professional manufacturer of high quality wood work accessories, sanding discs and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov