Universal 1/4" Shanks. 1/4" Carbide Router Bits, Sealed Bearings For Smooth Rotation And Precise Cuts15 Router Sizes. Tct Router Bit Kit Contains Cove Box Bit, Cove Bit, Dovetail Bit, Round Bit, Round Angle, Straight Bit, 45 Countersink, Panel Pilot Bit, Roman Ogee. Various Options Can Meet Your Different NeedsHigh Quality Tungsten Carbide Blades Can Be Resharpened, Sealed Bearings For Smooth Rotation And Precise Cuts. With An Antioxidant Coating On The Blade Head, These Bits Are Durable And Have A Long Life.Easy To Identify And Organize. The Starter Router Bit Set Is Labeled With The Type Of Bit With A Coordinating Picture Enclosed In A Wooden Case, So You Can Easily Choose The One You Need. With The Storage Box, It Is Convenient To Carry These Tools AnywhereWide Application. Perfect For Your Woodworking Projects For Edging, Trimming, Graining, Tenon Boring And Slotting, Professional Diy Tools For Woodworkers And Hobbyists Suitable For Chipboard, Mdf, Hardwood And Softwood; Can Be Used On Cnc Routers And Other Automatic Routers, As Well As Portable And Table-Mounted Routers