Core Bit Extension

Diamond Tool Store Verified independent store

→

Core bit extension rods give you a longer coring depth Diamond core drill bit extensions are used to quickly and easily achieve a greater depth when drilling with a core bit. You c an attach multiple extensions to achieve 14". Description Thread Fits Bit Size Part Number Catalog Number 4" 125-4 1.250"-7 1-5/8" & up 01863 4" 125-4-S water sprayer 1.250"-7 1-5/8" & up 01864 6" 120-6 5/8"-11 up to 1-1/2" 01866 6" 120-6 7/8" O.D. up to 1-1/2" 55999 6" 125-6 1.250"-7 1-5/8" & up 01869 12" 120-12 5/8"-11 up to 1-1/2" 01870 12" 120-12 7/8" O.D. up to 1-1/2" 55696 12" 125-12 1.250"-7 1-5/8" & up 01873 24" 125-4 1.250"-7 1-5/8" & up 01909 36" 125-36 1.250"-7 1-5/8" & up 01877 48" 125-48 1.250"-7 1-5/8" & up 01897 6" 187-6 1.875"-7 Optional large bits 01962 12" 187-12 1.875"-7 Optional large bits 01945 Show more