6pcs Ti Step Wood Metal Cutting Hole Saw Holesaw Woodworking Drill Bit HSS 4241 Description: 100% brand new and high quality Saw drill woodworking drill Hardware tools cutting tools slot sawtooth bit Surface treatment: Titanium Coated Suitable for thin wood, wood, aluminum, plastic plates pull grooving Material: HSS 4241 Size: 3mm,4mm,5mm,6mm,6.5mm,8mm Quantity: 1set(6pcs) Note: Due to the difference