The Bosch Pro Box HSS-Co 135° metal drill bit set (19-piece) provides you with everything you need for precise drilling in metal. The bits made from high-quality HSS-Co (5% cobalt) according to DIN 338 guarantee high hardness, heat resistance, and long service life. With diameters ranging from 1 to 10 mm and working lengths from 12 to 87 mm, you are well-equipped for a variety of applications. The bits are specifically designed for alloyed and unalloyed steels, stainless steels, gray cast iron, and acid-resistant materials. The 135° point angle ensures clean drill holes and quick progress. The practical ProBox protects your bits and keeps them neatly stored. Ideal for professional use in workshops and on construction sites., , Product information:, 19 different metal drill bits, Use universal cutting oil with metal drill bits, Suitable for drill stands or pillar drills, Wear-resistant, precision drill bits, Stainless steel, Acid and heat resistant