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12PCS M10 Brazed Diamond Hole Saw Set for Dry Drilling Stone and Tile This 12-piece M10-threaded hole saw set includes a complete range of sizes designed for precise dry drilling on tile, marble, granite, and other hard materials. Made of industrial-grade emery (diamond grit) and carbon steel, the bits ensure efficient cutting and long-lasting durability. Key Features: Model: 12PCS Brazing Hole Opener Set Material: Emery (diamond grit) + carbon steel Application: Suitable for drilling and enlarging holes in tile, marble, granite, and stone Thread: M10, compatible with angle grinders and drills Dimensions: Box size 19.5 × 15 × 5 cm (7.7 × 5.9 × 2 inch) Weight: 0.65kg Multi-size bits included: 6mm to 35mm (1/4 inch to 1-3/8 inch approx.) Dry-use design – no water needed Comes in durable storage box Perfect for renovation, tiling, plumbing, and stone working professionals.