【Practicality】Extends the shank of any Forstner bit or hole saw by 8-1/2 inches (approx. 215mm), assisting you when working in tight spaces.
【Shank Compatibility】Designed specifically for hex-shank drill bits with a diameter of 3/8 inch or slightly less. Please Note: The 3/8 inch measurement refers to the "across-flats" distance of the bit's hex shank (please refer to Product Image 3). Please verify your bit's hex shank size before purchasing.
【High-Quality Material】Constructed from high-carbon steel and finished with a corrosion-resistant electrophoretic black coating, ensuring durability and rust prevention.
【Secure Grip】This drill bit extension features a hex broaching and is equipped with two set screws. This design firmly locks your drill bit in place, helping you complete DIY projects with ease.
【Product Dimensions】Hex Shank Diameter: 3/8 inch (approx. 9.5mm), Total Length: 10 inches (approx. 255mm), Extension Length: 8-1/2 inches (approx. 215mm).
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