[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 cutting edge, 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.<br><br>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<br><br>Package Contents: 3 x Step Drill Bit<br><br>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.