General description A metric set of 19 HSS drill bits from 1mm to 10mm in black/blue finish, supplied in a tube for easy storage and quick identification of the required size. Technical specifications Material: High Speed Steel (HSS) Point type: 118° Sizes: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10mm Manufactured according to DIN 338 Usage Suitable for general purpose applications, including: aluminium, copper, iron, mild steel, wood, plastic.