This Is A Great Set For The Beginning Carpenter Or Anyone In Need Of A Quality Set Of Drill Bits. Commercial. The Cemented Carbide Blade Precision Machined Yg8 Cutting Edge Makes Clean, Precise Cuts On Wood. Alloy Steel Main Construction Hardened Solid For Durability And Long Life. Perfect For Edging, Cutting, Veining And Grooving In All Woodworking Projects For Professional Woodworkers And Hobbyists Alike.Features:8Mm Shank, Sealed Bearings For Easy Precise And Smooth Cutting.Set Contains A Selection Of Popular Router Bits, Bits Can Be Re-Sharpened.All High Carbide Blades Quality Heat Treated With Concentricity. High, Clean Cutting, Smooth Rotation, Operative Light. And Protected In A Wooden Box, Convenient To Store. Transport And To Use.Suitable For Particleboard, Mdf, Hardwoods And Softwoods, Mainly Used For Wood Cutting, Puzzles, Boring Tenons And Carving, Etc. &Nbsp;Features:Material: Cemented Carbide; Yg8Stem: 8MmQuantity: 12 PcsType:Dia-12.7 R-6.3Dia-22 R-6.3Dia-12.7 Angle-14Dia-32 Angle-45Dia- 12.7Dia-16Dia-22 R-6.3Dia-12Dia-6Dia-28.6 R-9.5Dia-12.7 Angle-90Dia-25 R-4Box Size: 16.4 X 12.2 X 5Cm/6.45