The original O-Ratchet Pass Thru ratchet and sockets manufactured in the USA. Discover the convenience of pass-thru sockets that functionally replace one deep and one standard socket, and access restricted fasteners with the low-profile ratchet and socket combinations. This set includes the following metric socket sizes: 10mm, 11mm, 12mm, 13mm, 15mm, 16mm, 17mm, 19mm, 21mm. […]