Features and Benefits: A 3/8" drive ratchet in 1/4" ratchet size format; The Nano 3/8" head is 50% the size of the most popular 3/8" competition and the same size as 1/4" wrenches; 72 tooth, 12" long model, quick-release socket retention, solid teardrop handle, full chrome polish finish; Exceeds ASME torque standards for 3/8" drive tools despite its miniature size; The Astro Tools 93812 Nano Ratchet - 3/8" Drive Head in 1/4" Ratchet Body Long is a 3/8" drive ratchet in a 1/4" ratchet size format. This tool's nano 3/8" head is 50% the size of the most popular 3/8" competition and the same size as 1/4" wrenches. The 72-tooth in this tool also includes a 12" long model, quick-release socket retention, solid teardrop handle, and is full chrome polish finish. Designed to exceeds ASME torque standards for 3/8" drive tools despite its miniature size.