Owl Tools Jumbo Crows Foot Wrench Set 1/2 Drive - (14 Piece Set in Large SAE Sizes from 1 1/16" to 2") Black Oxide with Laser Etched Sizing Crowfoot Wrench Set - - Amazon.com
OPEN-END CROWFOOT WRENCH; 3/8"; 19 MM
Crows Foot - Large-SR-C000
How to use a crow's foot wrench adapter. Demo done on Yamaha R6 chain adjuster nut. - YouTube
TWB-36 36 mm Crow Foot | Park Tool
3-Piece Spring Loaded Auto Adjusting Crowfoot Wrench Set – ARES Tool, MJD Industries, LLC