Wrench is a commonly used installation and disassembly tool, which is a manual tool that uses the lever principle to turn bolts, screws, nuts, and other threaded fasteners that hold bolts or nuts open or threaded. Wrenches are usually made of structural steel made of carbon or alloy materials.
A wrench usually has an opening or sleeve hole at one or both ends of the handle to hold a bolt or nut. When used, external force is applied to the handle along the direction of thread rotation to turn the bolt or nut.
There are basically two types of wrenches, dead wrenches and live wrenches. The former refers to a wrench with a fixed number written on it, while the latter is an adjustable wrench. 1. Open end wrench: A fixed size opening made at one or both ends, used to turn a nut or bolt of a certain size. 2. Box wrench: With working ends with hexagonal or hexagonal holes at both ends, it is suitable for situations where the working space is narrow and ordinary wrenches cannot be used. 3. Dual purpose wrench: One end is the same as a single solid wrench, and the other end is the same as a ring wrench. Tighten bolts or nuts of the same specifications at both ends. 4. Monkey wrench: The width of the opening can be adjusted within a certain size range, and it can rotate bolts or nuts of different specifications. The structural feature of this wrench is that the fixed jaws are made into a flat concave pliers with fine teeth; One end of the movable jaw is made into a flat jaw; The other end is made into a concave jaw with fine teeth; Press down on the worm gear, and the movable jaws can be quickly removed to change the position of the jaws. 5. Hook wrench: also known as crescent wrench, used to turn flat nuts with limited thickness. 6. Socket wrench: It is composed of multiple sockets with hexagonal or hexagonal holes and equipped with various accessories such as handles and extension rods. It is particularly suitable for turning bolts or nuts with very narrow positions or deep depressions. 7. Hexagonal wrench: A hexagonal rod shaped wrench in an L-shape, specifically designed for turning hex screws. The model of the internal hexagonal wrench is based on the size of the opposite side of the hexagon, and the size of the bolt has national standards. Usage: Specially used for tightening or dismantling round nuts on machine tools, vehicles, and mechanical equipment. 8. Torque wrench: It can display the applied torque when tightening bolts or nuts; Or when the applied torque reaches the specified value, a light or sound signal will be emitted. A torque wrench is suitable for installations with clear specifications for torque size.
Manual Wrench:
Manual wrench, also known as ordinary wrench, is mainly used in ordinary daily life and work. Its use is relatively simple, mainly divided into single headed wrench, double headed wrench, adjustable wrench, ring wrench, multi-purpose wrench, impact wrench, socket wrench, socket driver, torque wrench, torque wrench, cross wrench, ratchet wrench, hook wrench, internal hexagonal wrench, internal square wrench, manual clutch torque wrench, pipe wrench T-shaped wrench, L-shaped wrench, three-way wrench, crescent wrench, oil bucket wrench, tire wrench, spark plug wrench, filter wrench, combination wrench, other wrenches, etc. Torque wrenches are divided into sound wrenches, pointer wrenches, and digital display wrenches.
The use of manual wrenches:
1. Select the corresponding wrench according to the characteristics of the fastener being tightened. 2. Tighten, grip the end of the lever with your hand, and tighten it with force in a clockwise direction; Loosen and rotate counterclockwise.
Features of manual wrenches:
Simple operation, low price, and high labor intensity.
Open Spanner:
The purpose and technical characteristics of an open end wrench:
Screws are the main fasteners in mechanical equipment, and open-end wrenches are important tools for processing, production, and maintenance in the mechanical industry. This project is a revolution in traditional wrench tools, and it has the following advantages. 1. It can work quickly, with a working speed three to four times faster than traditional wrenches and even faster than fast wrenches. 2. An open end wrench can be used for 2-6 sizes of screws, while a double headed solid wrench can only be used for 2 types of screws. An open end wrench is equivalent to 2-3 solid wrenches, equivalent to an adjustable wrench, but it can work quickly without adjusting the opening. 3. It has a long service life and cannot be damaged, and the front quick wrench is prone to damage. 4. The manufacturing process is simple, and its cost is even lower than that of a solid wrench. 5. Lightweight, easy to carry, and labor-saving.
Surface Treatment:
1. Bright chrome: shiny like a mirror;
2. Chromite: Matte;
3. Electrophoresis: black, bright, under the action of external direct current, charged particles are directed towards the cathode or anode in a dispersed medium force, promoting the separation of substances;
4. Phosphating: Black, but with a dull luster. Immerse the substance in the phosphating solution and deposit it on the toilet surface to form a layer of insoluble crystalline phosphorus, which is a process of hydrochloric acid conversion.
5. Grey nickel: It is a new surface treatment method with strong rust prevention ability and will increase the service life of the product.
6. Other treatments include blackening, nickel iron alloy, pearl nickel, black nickel, and titanium plating.
Product Information:
| Item NO. |
KN-HL23155 |
| Material |
CRV |
| Size |
6-14MM |
| MOQ |
3000SETS |
Product Pictures:
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