Core Drill Bit Extensions

$56.70 USD

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Size 6" 12" 18"

Diameter 1 - 1/4-7 5/8-11

Core drill bit extensions for increasing drilling depth. Available in 6", 12", and 18" lengths with 1-1/4"-7 or 5/8"-11 thread options.

Extend your reach when drilling through thick walls, floors, or foundations. Precision-machined threads ensure a secure, wobble-free connection between your core drill and bit.

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Diameter	SKU	Depth	Connection
6" / 1 - 1/4-7	RDT-EXT-6-1--1-4-7	14 in	1-1/4 in, 7 thread
6" / 5/8-11	RDT-EXT-6-8-11	14 in	1-1/4 in, 7 thread
12" / 1 - 1/4-7	RDT-EXT-12-1--1-4-7	14 in	1-1/4 in, 7 thread
12" / 5/8-11	RDT-EXT-12-8-11	14 in	1-1/4 in, 7 thread
18" / 1 - 1/4-7	RDT-EXT-18-1--1-4-7	14 in	1-1/4 in, 7 thread
18" / 5/8-11	RDT-EXT-18-8-11	14 in	1-1/4 in, 7 thread

Family specifications. Verify per size before purchase, or call us.