Product: Marble Core Drill

Shank: Round shank for drill diameters 4mm‑16mm; Triangle shank for drill diameters 18mm and above

Grit Size: 46#

Overall Length: 65mm

Standard Drilling Sizes: 4mm‑12mm

Manufacturing Process: Electroplated

Product Description：This electroplated diamond core drill is designed for hole‑cutting on various hard materials including glass, tile, marble and granite. With optimized manufacturing technology, it delivers smooth and clean cutting surfaces for superior working results, greatly improving operating comfort and overall user experience.