Core Bore Super Premium Red Turbo Bits, TSPSAG3+ Diamond Products Core Bore is one of the top brands in the Diamond Core Bit Business. With a wide range of quality grades, you can get inexpensive bits or high-performing, long-lasting bits and everything in between, all made with high safety standards in mind. Wet Core Bits can be used with hand-held units or rig-mounted units. Features Fastest coring action bit in various applications with heavy steel Extra high diamond depth of .400" long life and fast core Designed for wet drilling in hard aggregate with moderate steel High diamond concentration for excellent speed in moderate to heavy steel applications This bit is one of the fastest general-purpose bits available Use this bit with low to medium HP machines This is a very fast cutting and soft bond bit Special ribbed turbo segments allows for less surface-to-surface giving faster coring action High diamond concentration for excellent footage and drilling speed 1-1/4"-7 Threaded Hub Diamond depth .400" Core length of 13" Any length available upon request