Amazon.com: Socket Bit Hex Shank Adapter Drill
General Usage: This 3 piece Hex Shank Bit Driver Extension Bar Set is designed to meet a variety of needs. Fits snugly and securely in your drill chuck or hand held driver. Consisting of your most common bit sizes 1/4', 3/8', and 1/3' changing shank sizes. Provides versatility and convenience no matter which tool you chose to use.
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