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
Amazon.com: Makita B-64163 Adapter, Spline-SDS-Plus : Tools & Home Improvement
Bosch SDS-Max to SDS-Plus Adapter for Rotary Hammers HA1030 - The Home Depot
Hitachi Sds Max Shank Adapter to 3-Jaws Drill Chuck 1/2Thread at Lowes.com