A tool (10) for rotating a screw-on oil filter cartridge, the tool comprising a driving member (28, 28b); gripping jaws (12a, 12b) movable in relation to each other for gripping an oil filter cartridge; a guide arrangement (13, 14a, 14b) for guiding the gripping jaws; means (16a, 16b) for biasing the gripping jaws towards each other; and a driving mechanism (28, 28c, 24, 22a, 22b, 20a, 20b, 21a, 21b) coupled to the driving (28b) member and gripping jaws (12a, 12b) for converting rotation into movement of the gripping jaws towards each other, into engagement with an oil filter cartridge and applying either screwing or unscrewing torque thereto. The tool comprises: a locking mechanism (30, 32, 28, 24) for releasably locking the gripping jaws (12a, 12b) at a pre-determined distance from each other; and a release actuator (28a) for unlocking the locking mechanism and releasing of the gripping jaws.

An open-end wrench includes a stationary jaw including an inclined hole, a through hole adjacent to a first end of an interior surface and communicating with the inclined hole, and a forward hook; a handle pivotably secured to a rear end of the stationary jaw; and a moveable jaw including a forward hook; a hollow cylinder extending from a rear portion to dispose in the inclined hole, the hollow cylinder having an elongated slot on a surface and communicating with an interior of the hollow cylinder, and internal threads at an open end of the hollow cylinder; a biasing member disposed in the hollow cylinder, a threaded fastener secured to the internal threads to urge against a first end of the biasing member; and a pin inserted through the through hole and the elongated slot to stop at a second end of the biasing member.

An open-end wrench includes a stationary jaw including an inclined hole, a through hole adjacent to a first end of an interior surface and communicating with the inclined hole, and a forward hook; a handle pivotably secured to a rear end of the stationary jaw; and a moveable jaw including a forward hook; a hollow cylinder extending from a rear portion to dispose in the inclined hole, the hollow cylinder having an elongated slot on a surface and communicating with an interior of the hollow cylinder, and internal threads at an open end of the hollow cylinder; a biasing member disposed in the hollow cylinder, a threaded fastener secured to the internal threads to urge against a first end of the biasing member; and a pin inserted through the through hole and the elongated slot to stop at a second end of the biasing member.

The present invention provides a spanner box including a main shaft (3) which has a cylindrical shape, a screw thread (3-2) is formed in a central region of an outer side surface, a side surface is cut from the central region, a second spring groove (3-3) is formed in a bottom surface of the bolt head protrusion latch movement groove (3-4), and one end portion of an elastic part (4) is disposed in the second spring groove (3-3), first bolt head protrusion latches (1) each of which having a thickness suitable for being insertable into the main shaft coupling bolt tab (3-5), an irregularity (1-1) is formed in a bottom surface of a lower end portion, a spring groove (1-4) is formed at one side of a bottom surface of an upper end portion, and a movement groove (1-2) is formed at a center of a side surface.

The present invention provides a spanner box including a main shaft (3) which has a cylindrical shape, a screw thread (3-2) is formed in a central region of an outer side surface, a side surface is cut from the central region, a second spring groove (3-3) is formed in a bottom surface of the bolt head protrusion latch movement groove (3-4), and one end portion of an elastic part (4) is disposed in the second spring groove (3-3), first bolt head protrusion latches (1) each of which having a thickness suitable for being insertable into the main shaft coupling bolt tab (3-5), an irregularity (1-1) is formed in a bottom surface of a lower end portion, a spring groove (1-4) is formed at one side of a bottom surface of an upper end portion, and a movement groove (1-2) is formed at a center of a side surface.

An adjustable open end wrench includes a pivot extending through a handle and a first jaw, permitting the first jaw to pivot relative to the handle. A second jaw is pivotably connected to the handle and is slidably connected to the first jaw. An elastic element is disposed between the handle and the second jaw. The second jaw includes a second driving portion facing a first driving portion of the first jaw. The first and second jaws are jointly pivotable relative to the handle between first and second positions. The first and second driving portions are close to each other when the first and second jaws are in the first position. The first and second driving portions are away from each other when the first and second jaws are in the second position. The elastic element is configured to move the second jaw towards the first position.

An adjustable wrench having a first fixed jaw; a handle extending away from the head and having a longitudinal axis; a second jaw selectively positionable with respect to the first jaw; a rotating rod controlling the positioning of said second jaw and comprising two rotating sleeves; one near the head located in the cut out of the handle; one near the rear located in the cut out of the handle; an end knob on the end opposite the gear train operatively coupling said rod to said second jaw; said rod having 3 holes for split drift pins to secure rotating sleeves and end rotating knob; said rod has a smaller diameter at a specified distance from the rod's end to accept a pin. At the rod's end is an end knob. Said sleeves and end knob rotate, at a latitudinal axis (perpendicular) to handle secured by split drift pins or adhesive. Such a wrench may have a p roof torque of at least the minimum level set forth in ASME B107.8 2003 revision.

An adjustable wrench having a first fixed jaw; a handle extending away from the head and having a longitudinal axis; a second jaw selectively positionable with respect to the first jaw; a rotating rod controlling the positioning of said second jaw and comprising two rotating sleeves; one near the head located in the cut out of the handle; one near the rear located in the cut out of the handle; an end knob on the end opposite the gear train operatively coupling said rod to said second jaw; said rod having 3 holes for split drift pins to secure rotating sleeves and end rotating knob; said rod has a smaller diameter at a specified distance from the rod's end to accept a pin. At the rod's end is an end knob. Said sleeves and end knob rotate, at a latitudinal axis (perpendicular) to handle secured by split drift pins or adhesive. Such a wrench may have a p roof torque of at least the minimum level set forth in ASME B107.8 2003 revision.

A clamping socket assembly and method includes positioning a fastener body in a collet. The collet has a first end and a second end, wherein the second end receives the body. The first end includes a tool mating member. The collet has a perimeter wall having a plurality of slots extending therein that extend into the second end to define a plurality of wings. A sleeve is positioned on the collet and is threadably coupled to the collet. The sleeve is rotated in a first direction to threadably couple the sleeve to the collet such that the sleeve moves toward the second end and urges the wings into frictional engagement with the fastener body. A tool is extended through the distal end and into the tool mating member. The tool is rotated to rotate the collet and the body.

An adjustable socket assembly includes a collet having a first end, a second end, and a perimeter wall. The second end has a receiving aperture therein. The collet is divided into a plurality a plurality of sections. A sleeve has a bottom end that receives the collet. The sleeve has an interior surface that tapers inwardly and abuts the sections to move toward each other as the sleeve moves toward the second ends of the sections. A biasing member extends through a top end of the sleeve and engages each of the sections. The biasing member is actuated to bias the sleeve downward to close together the sections and engaged the valve actuator. An engagement head is attached to the upper end of the biasing member and engages a tool to rotate the collet.