Made of high-strength steel and high-quality corundum powder, and fine workmanship; durable, high precision machining, smooth appearance, heavy quality.
16 pieces a set diamond drill bits, hole saw core drill style bit. 16 Sizes: 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm 30mm 35mm 40mm 45mm 50mm
Versatile Applications: This Set Diamond Hole Saw bits with 16 different sizes which allow you to cleanly cut glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, granite, light stone and fiberglass.This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite.
Practical and Useful: Suitable for Lithium Drill, AC Drill, Hammer Drill, Drill Press and so on,it could cut the glass,ceramics,ceramic tile,slate,marble etc easily and quickly
PLEASE ATTENTION: Please keep adding water to keep the drill cool, speed under in 800-1000 per minute ,strictly PROHIBIT dry drilling!