Diamond Products Wet Diamond Core Bit 09978 1 Inch Star Blue (13 Inch Depth 5 8 Inch Hub Thread Concrete Drilling) Abrasives The tool boasts an incredibly The tool boasts an incredibly short 6 Manufactured from high tensile steel wire with a friction reducing bright coated finish this 13 inch deep bit facilitates rapid material removal for commercial conduit and piping installations Brand Diamond Products Model Number 09978 Product Line Core Bore Star Blue Bit Diameter 1 Inch Drilling Depth 13 Inches Hub Thread Size 5 8 Inch 11 UNC Bond Type General Purpose Application Type Wet Drilling Bit Type Segmented Wet Coring Country of Origin Indonesia Pro Tip: To significantly extend the lifespan of the diamond segments and prevent core binding