Item Descriptions:-Main Function : 1/4 router bit straight cut set are great for woodworking edging,trimming,grooves,for refining wood projects and combined plunge cutting and pattern or template routing.-Wide Application : 1/4 shank straight router bits is suitable for cutting all composite materials, plywoods, softwoods, laminate, MDF, plastic and chipboard.-High Quality Material : Made of carbide alloy, more wear-resistant, anti-distortion, rust-proof, antioxidant and tear-resistant.-Precision Size : The 1/4 shank flush trim router bit with top bearing, cutting diameter : 1/4 inch, 5/16 inch, 3/8 inch,1/2 inch.-Easy to Storage : Each 1/4 straight flute router bit has an independent small box packaging, it is easy to store these router bits.Package:1PC 1/4 Inch Flush Trim Router Bit1PC 5/16 Inch Flush Trim Router Bit1PC 3/8 Inch Flush Trim Router Bit1PC 1/2 Inch Flush Trim Router BitItem Specifications:Cutting Diameter:1/4 Inch, 5/16 Inch, 3/8 Inch,1/2 InchCutting Length:0.98 Inch (25mm)Shank Diameter:1/4 Inch (6.35mm)Blade Material:YG8 Carbide AlloyShank Material:45# Carbon Steel