Abstract: A grip-tightener wrench system has a plurality of fastener-head contacts (18, 19, 20) on an inside periphery of a wrench enclosure (1, 21) with spring opening of a closure gap (4) between opened and closed positions. The wrench enclosure has an outside periphery with closure appendages (16, 22, 24). The wrench enclosure rotates in a wrench housing (5) having housing appendages (17, 23, 25) against which the closure appendages are forced for closing the closure gap by rotation of the wrench housing in either direction of wrench rotation to rotate a fastener head or other object positioned in the wrench enclosure. The wrench housing can be affixed to or optionally attachable to a wrench handle (8, 10, 11), a wrench insert (9) or a wrench socket (12). The fastener-head contacts can be a plurality of walls (18) or a plurality of wall corners (20).

Abstract: An electrical T-fastener pliers has jaws (1, 3) with grip bays (8, 9, 39, 40) that are positioned on T-joint fastener jaws (15, 16, 17, 18) to be clamped onto targeted wires (19) by hand-squeezing handles (2, 4) of the electrical pliers. Jaws of the T-joint fasteners (12) are pressured against jaws of the pliers by outward pressure of outwardly sprung T-joint fasteners against designedly opened pliers jaws or optionally by inward pressure of the pliers jaws against jaws of unsprung T-joint fasteners (13). This provides a spring-pressured containment of a T-joint fastener while the pliers are being positioned in T-joining relationship to targeted electrical wiring. The handles can be extended at angles from the jaws to position a bottom handle designedly removed from a working surface in order to provide finger space between a working surface and in order to facilitate positioning the jaws under wires in close proximity to surfaces.