2Pcs Diamond Step Drill Bits 20-35-50mm Multi Layer Tapered Reamer M10 Thread Hole Expander Compatible with Metal, Wood, Concrete, Tile, Marble, Engineered Stone

2Pcs Diamond Step Drill Bits 20-35-50mm Multi Layer Tapered Reamer M10 Thread Hole Expander Compatible With Metal, Wood, Concrete, Tile, Marble, Engineered Stone

• Package Contents:You will get to 2Pcs Diamond Step Drill Bit and 2Pcs M10 Thread Shank Adapter for Drills
• Versatile Design:Three-step diamond drill bit designed for 20mm, 35mm, and 55mm hole sizes, perfect for drilling through hard surfaces.
• Durable Material:High-density diamond particle coating is used, the cutting edge is sharp and durable, and can quickly penetrate hard materials such as concrete, tiles, marble, etc.
• M10 Thread:M10 thread interface is used, which can be easily connected to the 100mm angle grinder; the package contains a special conversion rod that can be quickly adapted to the use of handheld electric drills to meet the needs of different construction scenarios.
• Versatile For Various Materials:Ideal for drilling through a wide range of materials, including concrete, tile, marble, granite, quartz, and microcrystalline stone. These drill bits are perfect for home improvement, construction, and professional projects, offering reliable performance on every surface.