3/8" Drive Male x 1/4" Hex Male Socket Adapter - 2" - IWAF26238B10 | Mac Tools
Impact Socket Adapter & Magnetic Bit Holder Set | 4 Pieces of 1/4-Inch – Lexivon.com
8Pcs 1/4" 3/8" 1/2" Socket Adapter/Extension Set Impact Hex Shank Driver Socket Bit Set for Drill| Alibaba.com
Socket Adapter Set 3 PCS Drill Bit Set-1/4” 3/8” 1/2” Hex Shank Impact Driver Bit Set Socket Holder+105 Right Angle Drill Attachment Drill Bit Extension, Drill Accessories-SLR4 - Amazon.com
3 Pcs 1/4 3/8 1/2 Bit Drive Socket Adapter 360° Rotatable for Cordless Drill Ratchet Extension Socket Wrench Adapter Set
DEWALT Impact Ready 3/8-in to 1/4-in Standard Socket Adapter in the Socket Adapters department at Lowes.com