.w3-container .w3-padding-left { font-size:160%; font-weight:normal; margin:20px 0px 15px 0px; } .w3-container p { margin:10px 0px 10px 0px; } .w3-container .w3-padding-left:first-child { margin-top:0px; } .w3-table { width:100%; } .w3-table td, th { padding: 6px 8px; padding-left: 8px; display: table-cell; text-align: left; vertical-align: top; background:#f2f2f2; } .w3-bordered tr { border: 1px solid #d0d0d0; } Product DescriptionYATO YT-44731 step drill bit set. Designed for drilling high-quality stainless steel, structural steel, and cold-rolled steel, non-ferrous metals, steel sheets, and plastics. • Made of HSS 4241 high-speed steel, coated with titanium nitride to increase the life of the drill bits • Drilled hole edges remain clean and burr-free • Self-centering on rounded and slippery surfaces • Rapid heat dissipation when drilling in hard materials • 2 spiral chip flutes efficiently remove drill bits • A handle with 3 flat surfaces allows for maximum torque transferPackage ContentsThe set includes 3 drill bits with diameters ranging from 3-20 mm.• 3-12 mm drill, steps: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm• 4-12 mm drill, steps: 4, 6, 8, 10, 12 mm4-20 mm drill, steps: 4, 6, 8, 10, 12, 14, 16, 18, 20 mmTechnical Data Number index YT-44731 EAN 5906083054082 Mark Yato Diameter [mm] 3-20 Material HSS steel 4241 Application Metal Handle Cylindrical