★Application: Masonry hole saw used on glass, glass jar, ceramics, aquarium, Porcelain, tiles, marble, granite, slate, wood and other hard surfaces.
★Instructions:At the beginning of drilling and cutting, continuous water spray cooling is required to protect and prolong the tool life; With the bit mounted on the hand tool, start your hole diagonally, make a round trace and then hold drill straight.
★Product Features: Diamond coating, carbon steel material, nickel plated surface, durable, good quality, side hole design can quickly remove debris to keep the bit clean.