Spindle RUKO 93 mm Spiral

If you like to take care of every detail in your home and own the latest products that will make your life easier, purchase <b>Spindle RUKO 93 mm Spiral</b> at the best price.<br><br><p>The <b>RUKO drill bit</b> is made of <b>high-performance cobalt-alloyed high-speed steel</b>, a material that provides superior heat resistance and outstanding hardness, ideal for drilling operations in materials that produce difficult-to-remove chips. With an <b>approximate length of 93 mm</b> and a diameter of <b>5.5 mm</b>, this twist drill features a specially ground conical tip designed with a split point according to <b>DIN 1412 C</b> standard, which improves accuracy and facilitates drilling start without slipping. It has a cutting angle of <b>130º</b> and a helix angle between <b>20º and 30º</b>, optimized for efficient chip evacuation and longer tool life. The diameter tolerance is <b>h8</b>, ensuring precise fit in technical applications. Its golden brown surface is not only distinctive but also protects against wear during use. This drill bit is designed for <b>right-hand feed</b> and is suitable for working with demanding materials such as <b>alloyed and unalloyed steel up to approximately 900 N/mm² tensile strength</b>, gray and malleable cast iron, as well as acid-resistant stainless steels, including those with high chromium content like V2A and V4A. The product comes in a translucent plastic case with a red background label, facilitating safe storage and transport. This RUKO drill bit combines durability, precision, and versatility for professional applications requiring demanding drilling and consistent tool life, making it a reliable tool for tough metalworking tasks.</p><br><br><ul><li>Shape: Spiral</li><li>Approx. dimensions: 93 mm</li><li>Approx. diameter: 5,5 mm</li><li>Cut size: 57 mm</li><li>Colour: Bronze</li></ul>