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Core Bit Adapters

High quality adapters for use on core rig spindles when connecting to various sized core bit hubs. 

5/8"-11 adapters and extensions also fit dry hold saws and thrinwall core bits

Standard core bits have the following threaded hub sizes:
1-5/8" and under (bit diameter)=5/8"-11 thread
(5/8" diameter, 11 threaded per inch)

1-7/8" and up (bit diameter) = 1.250"-7 thread
(1-1/4" diameter, 7 thread per inch)


NWJ threads have a large thread pitch that make it easy to unscrew the core bit and/or other extensions
Catalog #Part #Description
01878 4400008 CORE BIT ADAPTER (1015) 1.250"-7 FEMALE TO 5/8"-11 MALE
47697 4400162 CORE BIT ADAPTER WITH SCREW (1015-B) 1.250"-7 FEMALE TO 5/8"-11 MALE
53577 4400163 CORE BIT ADAPTER REPLACEMENT BOTTOM THREAD CAPSCREW FOR MODEL #1015-B
01880 4400009 CORE BIT ADAPTER (1510) 5/8"-11 FEMALE TO 1.250"-7 MALE
01881 4400010 CORE BIT ADAPTER (1016) 1.250"-7 FEMALE TO 5/8"-18 MALE
01882 4400011 CORE BIT ADAPTER (1020) 1/2"-20 FEMALE TO 5/8"-11 MALE
01883 4400012 CORE BIT ADAPTER (BANTUM-15) BANTUM FEMALE TO 5/8"-11 MALE
01920 4400068 CORE BIT ADAPTER (MORSE #2) #2 MORSE TAPER MALE TO 5/8"-11 MALE
01917 4400061 CORE BIT ADAPTER (MORSE #3) #3 MORSE TAPER MALE TO 5/8"-11 MALE
01918 4400062 CORE BIT ADAPTER (MORSE #4) #4 MORSE TAPER MALE TO 5/8"-11 MALE
79291 4400063 CORE BIT ADAPTER (MORSE #5) #5 MORSE TAPER MALE TO 5/8"-11 MALE
01913 4400056 CORE BIT ADAPTER (3/8" S.S.) 3/8" STRAIGHT SHANK MALE TO 5/8"-11 MALE
01899 4400033 CORE BIT ADAPTER (1/2" S.S.) 1/2" STRAIGHT SHANK MALE TO 5/8"-11 MALE
01936 4400087 CORE BIT ADAPTER (5/8" S.S.) 5/8" STRAIGHT SHANK MALE TO 5/8"-11 MALE
01905 4400037 CORE BIT ADAPTER (1/2" BSP) 1/2" BRITISH STANDARD PIPING MALE TO 5/8"-11 MALE
01903 4400036 CORE BIT ADAPTER (1/2" BSP) 1/2" BRITISH STANDARD PIPING MALE TO 1.250"-7 MALE
01949 4400121 CORE BIT ADAPTER (LARGE THREAD REDUCER) 1.875"-7 FEMALE TO 1.250"-7 MALE
01956 4400134 CORE BIT ADAPTER (LARGE THREAD ADAPTER) 1.250"-7 FEMALE TO 1.875"-7 MALE
77368 4400323 CORE BIT ADAPTER (NWJ) 1.250"-7 FEMALE TO NWJ MALE
77703 4400324 CORE BIT ADAPTER (NWJ) NWJ FEMALE TO 1.250"-7 MALE
78493 4400325 CORE BIT ADAPTER (NWJ) 1.875"-7 FEMALE TO NWJ MALE
78494 4400326 CORE BIT ADAPTER (NWJ) NWJ FEMALE TO 1.875"-7 MALE