Diamond Drill Bit Set 10Pcs Hole Saw 3-18mm for Diamond Coating Carbon Steel Glass Ceramics Porcelain Tile Brick Marble

Features:
Premium Quality: These diamond drill bits that made of diamond and carbon steel with durability and rust resistance are wear-resistant and sharp.
Size: 3mm/0.12, 4mm/0.16, 5mm/0.2, 6mm/0.23, 8mm/0.31, 10mm/0.39, 12mm/0.47, 14mm/0.55, 16mm/0.62, 18mm/0.7.
Wide Applications: Can be used for granite, ceramic, marble tile, stone, glass, diamond coating and other hard material.
Smooth Cut: Coated with high quality diamond to ensures smooth punching and makes the drilling process easier, precise cutting and no rough edges.
Design: The side slots can help the entry of cooling water and the ejecting of debris from the borehole.