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These heavy duty diamond core bits can be used wet or dry in granite, marble and ceramic tile. The 38" shank allows them to be used in a hand-held electric drill. These bits come with a removable 14" pilot bit. Application: Granite, marble and ceramic tile Machinery: Hand-held el more...

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These supreme quality wet diamond core drill bits are designed to allow for drilling into a wide variety of masonry and concrete applications. Application: Concrete, block and brick Machinery: Core drill, grinder Features: 16" bit length 14" drill depth Suitable for drilling on a more...