1/2 Inch Core Bit Hex Adaptor: 1-1/4 Inch -7mm (Male) to 1/2 Inch Hex Shank Converts the 5/8"-11(M) thread for use in a normal 3/8" or 1/2" shank on handheld drill.

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1/2 Inch Core Bit Hex Adaptor: 1-1/4 Inch -7mm (Male) to 1/2 Inch Hex Shank Converts the 5/8"-11(M) thread for use in a normal 3/8" or 1/2" shank on handheld drill.

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