Diamond Step Drill Bit Set Pro Grade 20mm 35mm 50mm Pagoda Cone Tile Bit M10 Thread For Marble Stone Tile Concrete Granite Quartzite Diamond Coated Wear Resistant For Fast Clean Holes Multi Layer Tapered Reamer Enlarge Shape 2 Piece

2-Piece Step Drill Bit Set for Hard Materials: 20/35/50mm, M10
✔️ Three sizes in one: 20/35/50mm stepped design for precise holes

These diamond-coated step bits are built to cut through tough materials like ceramic tile, glass, marble, concrete, granite, and quartzite. They're ideal for home renovations, workshop projects, and professional work.

✅ Ultra wear-resistant diamond coating for long life and sharp cuts
✅ Works on ceramic tile, glass, marble, concrete, granite, quartzite
✅ Three-step sizes: 20mm, 35mm, 50mm for clean, precise holes
✅ Optimized geometry for smooth drilling with hand or power tools
✅ Universal M10 thread fits most standard angle grinders and drill chucks
✅ Pack size: 2-piece set

💡 What is a diamond coated drill bit used for in DIY and pro work? This handy tool shines for creating clean holes in hard materials. - For tile, ceramic, glass, and stone - For concrete, granite, quartzite - Works with hand tools or power drills