Core Bit Extension Tubes

starting at $36

The Extend-A-Tube Wet Drilling Core Bit System allows for quick and easy extended depth drilling applications. The precision machined extension tubes add an additional 12" to the drill tube length of Lackmond's PRO-VTB series wet core bits. The machined cap-to-tube connection ensures that bits run correctly and eliminates lateral run-out due to improperly seated or unevenly welded bit caps. It is recommended to use an anti-seize compound on bit threads prior to use for easy removal.

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Available Products

Item # Diameter Usable Length List Price
100CBEXTTUBE 1" 12" $36.00
118CBEXTTUBE 1-1/8" 12" $36.00
114CBEXTTUBE 1-1/4" 12" $37.00
138CBEXTTUBE 1-3/8" 12" $38.00
112CBEXTTUBE 1-1/2" 12" $39.00
158CBEXTTUBE 1-5/8" 12" $45.00
134CBEXTTUBE 1-3/4" 12" $46.00
178CBEXTTUBE 1-7/8" 12" $47.00
200CBEXTTUBE 2" 12" $47.00
214CBEXTTUBE 2-1/4" 12" $48.00
212CBEXTTUBE 2-1/2" 12" $49.00
300CBEXTTUBE 3" 12" $61.00
314CBEXTTUBE 3-1/4" 12" $93.00
312CBEXTTUBE 3-1/2" 12" $107.00
400CBEXTTUBE 4" 12" $118.00
414CBEXTTUBE 4-1/4" 12" $124.00
412CBEXTTUBE 4-1/2" 12" $127.00
500CBEXTTUBE 5" 12" $137.00
600CBEXTTUBE 6" 12" $176.00
614CBEXTTUBE 6-1/4" 12" $243.00