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Flexible Shaft Extension Bits,SDS Plus Shank to 1/4" Hex Socket Adaptor and 1/4"3/8"1/2" Square Drill Bit Extension Connector - Amazon.com
MILWAUKEE, SDS-PLUS Rotary Hammer, For 7/8 in Drill Dia, SDS Plus Extension - 785Y22|48-20-6945 - Grainger
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Builders Depot® DrillConnect Drill Bit Extension System for SDS-Max & Spline Rotary Hammers (Max-Lok).
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