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Shipping weight for this item is 6 ounces
The Threaded Extension is six inches in length, excluding the external threads, for those deep hard-to-reach spots. Using it with the Chucking Spud and TightFit« threaded shank drill bits provides the utility of an expensive set of "deep reach" extension drill bits. Used with the Right Angle Drill Attachment, the Extension allows work over/under or around obstacles. It is made of mild carbon steel (1144) and has a body diameter of 3/8" with 1/4-28 UNF-2B and 2A internal and external threads, 5/16" wrench flats for easy removal after job is done and is black oxided to prevent corrosion while enhancing appearance.
Note: Must be used with TightFit« threaded shank drill bits or other threaded items.