PARKER Reducing Adapter: 316 Stainless Steel, 1/2 in x 1/4 in Fitting Pipe Size, Female NPT x Male NPT - 1DFY3|8-4 RA-SS - Grainger
3/8 1/2 3/4 Drive Socket Reducer Air Impact Heavy Duty Ratchet Adapters New | eBay
EEEkit 4-pack 3/8" to 1/4" 1/2 inch Socket Adapter Reducer Air Impact Set for Ratchet Handles, Extension Bars Accessories - Walmart.com
Buy 3/8" To 1/4" 1/2 Inch Drive Ratchet Converter Socket Adapter Reducer Air Impact at affordable prices — free shipping, real reviews with photos — Joom
PVCMA114112 1-1/4" x 1-1/2" Schedule 40 PVC Male Adapter
Force 80942 Socket Adaptor 1/2" - 1/4" - FORCE Tools - kepmar.eu
Wera Tools 042760 1/2" Square to 1/4" Hex Adaptor with Quick-Release Chuck