Titanium step drill set High-precision center punch various materials <div data-slate-n0de="element"> <ul class="a-un0rdered-list a-vertical a-spacing-mini"> <li class="a-spacing-mini"><span class="a-list-item">Automatic Center Punch: The spring-loaded center punch delivers powerful impact and features an adjustable tip for durability and precision. The carbide center punch is 10 times stronger than ordinary punches. </span></li> <li class="a-spacing-mini"><span class="a-list-item">Titanium Coating: These step drill bits feature a titanium coating for heat and rust resistance. The coating reduces friction and keeps the drill bit cool during use. </span></li> <li class="a-spacing-mini"><span class="a-list-item">Various Sizes: This step drill bit set includes a standard drill bit with a center punch, available in a variety of sizes to suit different needs. Different shank sizes ensure compatibility with 1/4", 3/8", and 1/2" chucks. </span></li> <li class="a-spacing-mini"><span class="a-list-item">Wide Application: These stepped drill bits are suitable for drilling steel, aluminum, wood, and plastic plates quickly and smoothly. They can drill holes of different diameters, suitable for a variety of DIY projects. </span></li> <li class="a-spacing-mini"><span class="a-list-item">High Precision: Well-crafted drill bits with clearly visible digital measurements make it easy to identify sizes and improve accuracy. The protective aluminum casing ensures the drill bits stay sharp for a long time. </span></li> <li class="a-spacing-mini"></li> </ul> </div>