M10 M14 Thread to Power Drill Adapter 1/4" Hex Shank for Backing Pads Polishing | eBay
COLIBROX Socket Bit Adapter Drill Nut Driver Power Extension Bar 3pc Set 1/4" 3/8" 1/2" - Amazon.com
40010 - 7 Piece Metric Drill Bit Adapter Set - Make it Snappy Tools
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Amazon.com: Garden Auger Power Drill Adapter fits Corded Drill and Cordless Drill, SDS Plus to 1/2-Inch(M13 x 15mm) Thread Keyless Drill Chuck Adapter Round Shank for Impact Driver : Tools & Home