Metal drill bit set HSS-R (roll-rolled). 13 pieces. The powerful universal drill bit is a robust twist drill made of high-speed steel, featuring high elasticity and a low risk of breakage thanks to hot-formed production. It is universally suitable for a wide range of metals and hard plastics, allowing for precise drilling in iron, steel, non-ferrous metals, grey cast iron, and hard plastics. The drill diameter increases in 0.5 mm steps from 1.5 to 6.5 mm. This set includes 13 twist drills made of high-speed steel for hand-held and stationary drilling machines, ensuring a long service life and low risk of breakage due to high elasticity. It is suitable for all power tool brands. The contents of the set include 13 HSS-R metal drills with diameters: 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, and 6.5 mm. Note: Use of coolant is recommended. Safety note: Please wear protective goggles when using.