This 10 Piece HSS Sprint Master Drill Set includes drill bits in sizes 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10mm. The HSS Twist Drills offer toughness and precision with excellent cutting efficiency for drilling alloyed carbon and plain steel. They are ideal for hand-held operations, break-resistant with high elasticity and toughness, and feature a special point shape for speed. These drills have a long life due to their high-quality HSS Steel construction. Country of origin: Austria Item Package Quantity: 1 Package Weight: 240 grams Package Dimensions (L x B x H) in cm: 2.6 x 7.4 x 16 Weight: 0.22 pounds