KLEIN TOOLS, 3/8 in Tip Size, 6 3/4 in Overall Lg, Hollow Round Shank Nut Driver - 5LL64|630-3/8 - Grainger
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Milwaukee 48-22-2407 7 PC Hollow Shaft SAE Nut Driver Set
Amazon.com: 14 Piece SAE and Metric Professional Automotive Nut Driver Set Color Coded Nonslip TPR Hand Grips and 3-inch Hollow Shaft : Tools & Home Improvement