Omega Technologies ATBR3134E Hi-Lok 5/16” x 11/32” Flat Box Ratchet with Ejector are made of high quality, heat-treated steel and finished with a nickel-chrome plating. The result is a durable, long-lasting tool. Small size and variable shape make the box ratchet ideal for use in tight areas. Even without line of sight, the head fits easily onto a collar, while the shoulder ring prevents the collar from slipping though the socket. Hi-Lok® flat box ratchets with ejectors are durable, perfect for tight areas, have a shoulder ring inside socket and a collar ejector pin.