Features Traditional ‘ball release’ sockets present a serious risk when working at height. Sockets can be accidentally disengaged during every day working conditions, even if the ratchet is tethered securely. Tool@rrest pinned socket sets replace the exposed handle release with a recessed side release pin on the socket itself. Works to eliminate accidental release during ratchet operation. The pinned release mechanism means the socket will not disengage on impact. Ratchet Sets ½" square drive reversible ratchets. ½" square drive reversible ratchets. Fine toothed ratchet wheel with lever change and pin socket release. Fine toothed ratchet wheel with lever change and pin socket release. Non-slip handle. Chrome finished. Sockets Thin-walled impact socket design as standard. Sizes: Available in metric (10mm-32mm) and imperial (7/16" - 1 ¼" AF) ½" square drive. ¾" square drive sockets available. Pinned side release. Distinctive black finish with chrome Tool@rrest pin. Secured in lockable foam-lined plastic case.