Double-bladed titanium-coated step drill bits (5mm-35mm) are robust and durable, suitable for drilling holes in materials such as steel, wood, plastic, and brass with a screwdriver.

Ideal Size: Suitable for precision drilling from 5 to 35 mm in diameter; one drill bit can meet a variety of diameter requirements. Superior Material: Made of high-speed steel (HSS) with a titanium alloy coating, ensuring superior durability and effectively reducing friction and heat generation. Titanium alloy drill bits are particularly suitable for machining thin workpieces made of copper, aluminum, iron, wood, plastic, and other sheet materials. Easy Drilling: Marking and double-edged design make drilling faster, smoother, and more precise. Laser Engraving: Dimensions are laser-engraved on the metal, ensuring wear resistance even with repeated use. Applicable Materials: Plastics, wood, copper, iron, fiberglass, PVC, finned metals, and aluminum (≤ 3 mm).