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Bosch offers its diamond hole saw for medium to large hole-cutting in porcelain, granite, marble, ceramic tile or glass with the AutoStart system so users no longer have to worry about the saw skittering away during startup. The heart of the system is a spring-loaded retractable shaft and a conical carbide tip that creates a tiny indent to ensure the saw doesn’t skate or walk, resulting in cleaner holes and less waste. Bosch’s line of Quick-Change diamond hole saws are available in sizes ranging from 3/16 inch to 4 1/8 inches.
