Features: HSS Drill Bit Set For Wood, Plastic and Aluminum, Copper, Steel Ideal For DIY, Home and General Building/Engineering Using High?speed?steel,Durable. Specification: Material: High Speed Steel Surface?: Titanium Coated Containing sizes: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm,8.0mm,10mm Size & QTY: 1.5mm : 16pcs 2.0mm : 16pcs 2.5mm : 15pcs 3.0mm : 10pcs 3.2mm : 10pcs 3.5mm : 8pcs 4.0mm : 8pcs 4.5mm : 3pcs 5.0mm : 3pcs 5.5mm : 2pcs 6.0mm : 2pcs 6.5mm : 2pcs 8.0mm : 2pcs 10.0mm : 1pcs Quantity: 1 Set (98Pcs) Package?included?: 1 Set (98Pcs)?HSS?Drills