<< >> CORE BIT ADAPTERS Core Bit Adpters More Views Product Description Standard core bits have the following threaded hub sizes: 1-1/2” and under (bit diameter)= 5/8”-11 thread (5/8” diameter, 11 threads per inch) 1-5/8” and up (bit diameter) = 1-250”-7 thread (1-1/4” diameter, 7 threads per inch) * Male bottom thread is a replaceable grade 8, 5/8”-11 bolt with water way ∞ For use on Weka motors Top Thread Bottom Thread Male Description Part Number Catalog Number 1.250”-7 Female 5/8”-11 1015 4400008 01878 1.250”-7 Female 5/8”-11 Bolt * 1015-B 4400162 47697 5/8”-11 Female 1.250”-7 1510 4400009 01880 1.250”-7 Female 5/8”-18 1016 4400010 01881 1/2”-20 Female 5/8”-11 1020 4400011 01882 1.250”-7 Female 1.250”-12 DK13-DVH 4400320 75698 Bantum Female 5/8”-11 Bantum-15 4400012 01883 Bantum Female 1.250”-7 Bantum-15 4400051 01911 #2 Morse Taper Male 5/8”-11 Morse #2 4400068 01920 #3 Morse Taper Male 5/8”-11 Morse #3 4400061 01917 #4 Morse Taper Male 5/8”-11 Morse #4 4400062 01918 #5 Morse Taper Male 5/8”-11 Morse #5 4400063 79291 3/8” Straight Shank Male 5/8”-11 3/8” S.S. 4400056 01913 1/2” Straight Shank Male 5/8”-11 1/2” S.S. 4400033 01899 5/8” Straight Shank Male 5/8”-11 5/8” S.S. 4400087 01936 1/2” BSP Male 5/8”-11 1/2” British standard piping∞ 4400037 01905 1/2” BSP Male 1.250”-7 1/2” British standard piping∞ 4400036 01903 1.875”-7 Female 1.250”-7 Large thread reducer 4400121 01949 1.250”-7 Female 1.875”-7 Large thread adapter 4400134 01956 * Required Fields Additional Information Size No