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 can 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
0194