- Premium material: This drill bit is made of high quality alloy steel, offering excellent hardness, wear resistance, and long life. - Comfortable and precise: With fine workmanship, set screws and included hardware, this depth-limiting drill bit is easy to use and helps achieve accurate depth control. - Efficient chip extraction: The spiral flute design with a central core quickly evacuates chips, reduces binding, and ensures smooth holes. - Adjustable limit: The depth stop is adjustable to meet different drilling depths and task requirements. - Use scenarios: • Drilling precise-depth holes in metal plates for fasteners or dowels during fabrication or repair. • Wood or plastic projects that require controlled drilling depth for components or hardware. • DIY or professional cabinetry and assembly where consistent hole depth improves accuracy.