General description Perfect for precise drilling, the Sollbry HSS Step Drill Bit features a double slot conical design that allows for drilling holes ranging from 5mm to 35mm in diameter. This versatile drill bit is suitable for various materials including steel, wood, plastic, brass, aluminum, and PVC. Technical specifications Size range: 5mm - 35mm Material: High-speed steel (HSS) with titanium alloy coating Applicable materials: plastic, wood, copper, iron, glass fiber, PVC, metal fin, and aluminum (≤3mm) Usage Ideal for drilling precise holes in thin materials Double flute design enhances drilling speed and smoothness Laser engraved size markings for durability and easy identification Other information Note: Manual measurements may allow for an error of 1-3 cm Color differences may occur; refer to the actual item received