ITEM NAME:6 x HSS Titanium Coated Drill Bit Tool Set Woodworking Tools 3-8mm Cutting M9N1 description: 100% new high quality Color as shown Material: HSS 4241 Size: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm Surface treatment: Titanium Coated Uses: Suitable for thin wood, metal, plastic plates pull grooving. Packing: 6pcs x Drill Bit.Material: HSS 4241. Size: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm.