New 50Pcs/Set Twist Drill Bit Set Saw Set HSS High Steel Titanium Coated Drill Woodworking Wood Tool 1/1.5/2/2.5/3mm For Metal Material: HSS / High Speed Steel Surface Treatment: Titanium Coated Size & Quantity: 1.0mm : 10pcs 1.5mm : 10pcs 2.0mm : 10pcs 2.5mm : 10pcs 3.0mm : 10pcs Hss Drill Bit Set For Wood, Plastic And Aluminum. Ideal For DIY, Home And General Building/Engineering Using.