The Diamond Coated Drill Bits are made of high strength carbon steel with smooth nickel plating surface, hollow core drill bit lowers resisting force to the minimum, makes it easy to drill precise holes In Seconds.
Coated with high quality diamond, the diamond hole saw creates a high precision, smooth cut with no broken edges.
They are much more versatilesince they are used to drill glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, granite, light stone, and fiberglass.
Premium Quality Great Performance and long lasting, suitable for all common electric drillers.
Excellent for making clean and accurate hole on glass and tile.
Various Usage Suitable for Stone, Tiles, Ceramics, Glass and Granite, etc Processing.
Special Feature These hole saws are 30 Percent TALLER (deeper) than most competitors. You can drill through thicker materials with our tools.
Excellent Results Granite, Ceramic & Porcelain Tiles, Glass, Marble, Slate, and many types of Stones.
HOW TO USE:
Always use lubrication (water), otherwise the diamond core drill will burn.
Start your hole diagonally, make a round trace and then hold drill straight.