With VERY HIGH diamond concentration, Premium Black gives maximum footage and drilling speed in all types of wet drilling applications.
Good in moderate to high steel applications. Highest quality diamond and longest coring life
ORDERING INFORMATION All bits may be ordered with custom bonds Note: All diameters are nominal. Exact tolerances upon request.
Core Bit Lengths: 1/2” to 7/8” Diameter Core Bits Standard Core Length= 12”, 1” to 14” Diameter Core Bits Standard Core Length = 13” 16” Diameter Core bits Standard Core Length = 19”/18” Diameter Core Bits Standard Core Length = 22” 20” to 30” Diameter Core bits Standard Core Length = 23” Note: Any length available upon request.
Hub Sizes: 1/2” to 1-1/2” = 5/8”-11 threaded hub. 1-5/8” and up = 1-1/4”-7 threaded hub
POL – General purpose, longest life
P38Z – Hard aggregate with reinforcement
P64L – Asphalt and block
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