6.35MM/1/4 Inch Shank Diameter: 6.35 mm/1/4 Inch diameter shank that fits all 6.35 mm router machines, set of forged tool steel cuts with carbide blades of high quality for professional woodworking. 12PCS Router Bits: 1. Cove Box Bit R6.35mm (1/4"), 90 V Grooving Bit 12.7mm ( 1/2"), Dovetail Bit 12.7mm (1/2"), Cove Bit R6.35mm (1/4"), Straight Bit 12mm (1/2"), 45 Chamfer Bit 32mm (1-1/4"). 2. Straight Bit 6mm (1/4"), Roman Ogee Bit R4mm (5/32"), Straight Bit 16mm (5/8"), 2x Round Over Bit [R6.3mm (1/4")+R9.5mm (3/8")], Flush Trim Bit 12.7mm (1/2"). Suitable for Wood Types : Cutter set made of forged tool steel with high quality carbide blades for professional woodworking. Soft and medium-hard wood, MDF boards, plywood, plywood. Multipurpose :It is perfect for woodworking, for edging, trimming, grooves, for refining wood projects and ideal for carpenters and hobbyists of all experience levels (An Allen key for removing the bearings is included). Easy to Storage:The package Comes with high-quality storage case for easy storage and makes storing the router bits more convenient for jobs or home DIY improvement projects. Variety of options to meet your needs.