4-12mm Triangle Shank Step Drill Bit for Drilling PV Board, Iron & Aluminum Plates

This versatile step drill bit is designed for efficient and precise drilling into a variety of materials, including PV boards, iron, and aluminum plates. Featuring a triangle shank for improved grip and reduced slippage, it ensures stability and accuracy during use. The tool has a size range of 4-12mm, making it ideal for creating multiple hole sizes without needing to switch bits. Whether you're a professional or a DIY enthusiast, this durable and reliable drill bit simplifies your projects by delivering clean cuts and smooth finishes. Material: Bearing steel Manufacture country: China Instructions included: No