Item Name: Titanium Coated HSS Steel Drill Bit Milling Cutter Metal Drilling Edge Cutter. Saw drill woodworking drillSurface treatment: Titanium CoatedSuitable for thin wood, wood, aluminum, plastic plates pull grooving100% brand new and high qualityMaterial: High Speed SteelHardware tools cutting tools slot sawtooth bitSize: 3mm,4mm,5mm,6mm,6.5mm,8mmPackage includes: as picture shownNote: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you!2.Please allow slight dimension difference due to different manual measurement. *