Item Type: Router Bit Set Material: Hard Alloy Shank Specification: Approx. 6.35mm / 0.25in Wooden Box Material: Pine Uses: Used for Cutting Wood Products Applicable Scene: Woodworking Products Include: Straight Bit: 6mm R6.3 Cove Box Bit: 12.7mm 90v Grooving Bit: 12.7mm Straight Bit: 12.7mm R6.3 Rounding Over Bit: 22mm R4 Roman Ogee Bit: 25.4mm Package List 6 x Milling Cutter 1 x Hex Wrench 1 x Wood Box 1These router bit set is made from quality hard alloy material, which is sturdy and durable for long service life. 2These woodworking tools can withstand some heavy duty use and the test of time, and it has high temperature resistance. 3The 6.35mm shank bits provide greater stability and less vibration during use, giving you better use experience. 4Easy to store and carry, the included wooden case is sturdy and makes storing the high quality router bits convenient while in between jobs or DIY home improvement projects. 5Wide applications, this router bit set is truly versatile for your extra convenience, works great with woods, MDF, particle board, plywood compact panel.