Yukon Tool YTRB100 1/4" Carbide Router Bit Set with Bonus Wooden Case, 100-Pieces 1/4" High grade carbide, high performance heat treated, anti kick-back design router bits Bonus wooden storage case comes with picture and description of each bit so you can easily locate what you need Get a professional finish on any project without the high investment Razor sharp 600 grit grind carbide tips and 0.01mm accuracy; electronically balanced for super smooth run that is vibration free Anti stick coating cuts through all types of woods and composites to make for smoother cutting and faster run times