[Wide Range of Sizes]This step drill bit provides versatility with three sizes available: 20mm, 35mm, and 50mm, allowing you to open a wide range of hole sizes for various applications. [Efficient Cutting]Designed with a straight flute, this step drill bit effortlessly cuts through materials like wood, aluminum, and metal sheets, delivering high efficiency in your projects. [Sturdy Construction]Constructed with premium materials, this step drill bit ensures durability and long-lasting performance. Its hardened items enhance its strength, making it suitable for long-term use. [Precise and Accurate]With its precise , this milling cutter creates clean and accurate holes without any jagged edges. It enables you to achieve professional and precise results in your woodworking and metalworking tasks. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Diamond Package Contents: 3 x Step Drill Bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.