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
Additional information
Size Options
4" x 1.250"-7, 4" x 1.250"-7 (water Sprayer), 6" x 5/8"-11, 6" x 7/8" O.D, 6" x 1.250"-7, 12" x 5/8"-11, 12" x 7/8" O.D, 12" x 1.250"-7, 24" x 1.250"-7, 36" x 1.250"-7, 48" x 1.250"-7, 6" x 1.875"-7, 12" x 1.875"-7, 5' drill extension with NWJ threads, NWJ Male-1.250"-7 Female adapter, Male 1.250"-7- NWJ Female adapter, NWJ Male- 1.875"-7 Female adapter, Male 1.875"-7-NWJ Female adapter
