Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Metal, Tile, Wood, Concrete, Marble, Engineered Stone, Multi Hole Opener Cone Bit Grinder Cutter, Beveling Chamfer Step Tapered

Diamond Step Core Drill Bit – 3-in-1 Tower Design (20/35/50mm, M14 Thread) This professional-grade diamond step core drill bit combines three diameters in one tool (20mm, 35mm, 50mm), offering unmatched versatility for tile, marble, granite, and other hard materials. Perfect for pros needing precision, durability, and convenience in a single bit. 🔧 Key Features: 3-in-1 Tower Design: Allows drilling three different hole sizes without changing bits – saves time and improves efficiency. Industrial Diamond Coating: Delivers fast, smooth cuts and enhanced durability across hard surfaces. M14 Thread: Compatible with most angle grinders and rotary tools used in professional settings. One-Piece Forged Body: Ensures strength, balance, and long-term stability under heavy use. Ideal Applications: Suitable for construction, renovation, plumbing, and precision tile work. 📐 Specifications: Diameter (Steps): 20mm / 35mm / 50mm Step Heights: 12mm each (total height: 36mm) Material: Diamond-coated alloy steel Thread: M14 Weight: 391g This one-bit solution cuts clean, lasts long, and supports precise work. Add it to your toolbox today and drill with confidence! "

• "Three-Stage Step Design for Smooth Drilling Features a stepped pagoda structure (20/35/50mm) that ensures fast, clean, and chip-free drilling on tile, marble, and engineered stone."
• "Industrial-Grade Diamond Tip Equipped with a multilayer diamond-coated tip that offers sharp, precise cutting and superior wear resistance for extended tool life."
• diamond tipped drill bit"Built for Heavy-Duty Use Crafted from premium alloy steel for professional construction jobs and long-lasting performance across home improvement and industrial settings."
• diamond tile drill bit"Fits Standard Electric Drills Compatible with most handheld or bench drills—no special adapter needed, perfect for both professionals and DIY users."
• "Multi-Surface Versatility Ideal for cutting through ceramic, granite, quartz, microcrystalline stone, and concrete with consistent efficiency and minimal effort."