Ulisem 13-piece M35 HSS Cobalt Gold Twist Drill Bit Set for High-Speed Metric Drills, 1.5mm - 6.5mm, for Drilling Stainless Steel and Metal

General Description The Ulisem twist drill bit set comprises 13 pieces made of M35 cobalt steel, specially designed for drilling hard materials such as stainless steel, cast iron, and alloys. With a 5% cobalt content, these drill bits offer superior durability and wear resistance, ensuring a long service life. Their 135-degree split-point design allows for precise centering and easy penetration, making these drill bits ideal for DIY projects and general engineering. Technical Specifications Material: HSS M35 with 5% cobalt Angle Point: 135 degrees Flute Type: Spiral Shank Type: Straight Sizes Included: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.2 mm, 3.5 mm, 4 mm, 4.5 mm, 4.8 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm Drill Bit Length: 6 cm - 11.7 cm (2.36 - 4.61 inches) Weight: 125 g Package Dimensions: 13.3 x 7.5 x 1.2 cm Compatibility and Accessories Suitable for impact drills, bench drills, magnetic drills, pillar drills, milling machines, machining centers, etc. Applications: These drill bits are particularly effective for drilling hard materials such as steel, stainless steel, cast iron, copper, aluminum, as well as hard plastics and wood. They are designed to operate at speeds of 1500 rpm or more for maximum efficiency.