Hand tools are a classification of the hardware industry. The hardware industry is divided into hand tools, electric tools, auto maintenance tools, pneumatic tools, welding equipment, abrasive tools, daily hardware, construction hardware, kitchen and bathroom hardware, small household appliances, etc.
Hand tool classification
According to the use, hand tools can be divided into wrenches, pliers, screwdrivers, tape measures, hammers, sockets, cutting types, scissors, sets, and auxiliary categories such as tool carts, etc. Each category is different. model.
Wrenches include open-end wrenches, double torx wrenches, ratchet combination wrenches, combination wrenches, oil pipe wrenches, T-type socket wrenches, cross socket wrenches, adjustable wrenches, etc.;
Pliers include wire pliers, needle nose pliers, diagonal nose pliers, retaining ring pliers, carp pliers, water pump pliers, pipe pliers, powerful pliers, etc.;
Hand tool classification and hand tool related knowledge
Screwdrivers are available in one-shaped, cross-shaped, rice-shaped, hexagonal, flower-shaped and other categories;
Sockets are available in three specifications: 1/4", 3/8" and 1/2", "is expressed in inches; at the same time, each specification is divided into 6-angle sockets and 12-angle sockets;
Socket types are divided into pneumatic sleeves and manual sleeves
Hammers include claw hammers, bench hammers, ball-peen hammers, rubber hammers and installation hammers;
Cutting categories include files, diamond files, tin shears, aviation shears, utility knives, square pipe saws, pipe cutters, bolt cutters, etc.;
In terms of materials, there are chromium vanadium steel, carbon steel, alloy steel, etc.
What is the knowledge about using hand tools?
Screwdriver: A tool used to turn a screw to force it into place, usually with a thin wedge-shaped head that is inserted into a slot or notch in the head of the screw - also called a "screwdriver".
Wrench: A hand tool that uses the principle of leverage to twist bolts, screws, nuts and other threaded openings or hole fasteners that hold bolts or nuts. Wrenches usually have a clamp handle at one or both ends of the handle. By applying external force to the handle, the bolt or nut can be twisted to hold the opening or hole of the bolt or nut. When in use, external force is applied to the handle along the direction of thread rotation to twist the bolt or nut.
Hummer: A tool used to strike objects to cause them to move or deform. It is most commonly used to hammer nails, straighten or break objects apart. Hammers come in various forms, the common ones being a handle and a top. One side of the top is flat for striking, and the other side is the hammer head. The shape of the hammer head can be like a horn or a wedge, and its function is to pull out nails. There is also a round-shaped hammer head
Test pen: also called test pen, referred to as "electronic pen". It is an electrician's tool used to test whether there is electricity in the wire. There is a neon bulb in the pen body. If the neon bulb glows during the test, it means that the wire has electricity or is the live wire of the passage. The pen tip and tail of the test pen are made of metal materials, and the pen barrel is made of insulating materials. When using a test pen, be sure to touch the metal part at the end of the test pen with your hand. Otherwise, because there is no circuit between the charged object, the test pen, the human body, and the earth, the neon bulb in the test pen will not emit light, resulting in misjudgment and misjudgment. No electricity.
Tape measure: A tape measure is a commonly used measuring tool in daily life. What everyone often sees is the steel tape measure, which is commonly used in construction and decoration, and is also one of the essential tools for the home. Divided into fiber tape measure, tape measure, waist measurement, etc. Luban ruler, Feng shui ruler and Wen meter ruler are also steel tape measures.
Wallpaper Knife: A type of knife with a sharp blade, used to cut wallpaper and the like, hence the name "Wallpaper Knife", also known as "Utility Knife". It is often used in the decoration, decoration, and advertising plaque industries.
Electrician's knife: An electrician's knife is a cutting tool commonly used by electricians. An ordinary electrician's knife consists of a blade, a blade, a handle, a knife hanger, etc. When not in use, retract the blade into the handle. The root of the blade is hinged with the handle, and has scale lines and scale marks on it. A screwdriver bit is formed on the front end, and a file surface area is processed on both sides. There is a concave curved edge on the blade, and the end of the curved blade forms a blade tip. The handle is equipped with a protective button to prevent the blade from springing back. The blade of the electrician's knife has multiple functions. When used, only one electrician's knife can be used to complete various operations of connecting wires without carrying other tools. It has the beneficial effects of simple structure, convenient use, and diverse functions.
Hacksaws: including hand saws (household use, woodworking), cut saws (branch pruning), folding saws (branch pruning), hand bow saws, edge saws (woodworking), slitting saws (carpentry), cross-cut saws ( carpentry)
Level ruler: The level ruler has a level bubble, which can be used for inspection, measurement, and debugging whether the equipment is installed level.
File: A hand tool with many fine teeth and strips on the surface, used for filing workpieces. Used for micro-processing of metal, wood, leather and other surface layers.
Pliers: It is a hand tool used to clamp and fix workpieces, or to twist, bend, and cut metal wires. Pliers are V-shaped in shape and usually include three parts: handle, jaws and jaws.
Wire cutters: Wire cutters are a kind of clamping and shearing tool, consisting of a pliers head and a pliers handle. The pliers head includes a jaw, a tooth mouth, a knife edge, and a guillotine. The functions of each part of the pliers are: ① The teeth can be used to tighten or loosen nuts; ② The knife edge can be used to cut the rubber or plastic insulation layer of flexible wires, and can also be used to cut wires and iron wires; ③ The guillotine can be used To cut off hard metal wires such as wires and steel wires; ④ The insulating plastic tube of the pliers has a voltage resistance of more than 500V, and it can cut wires while powered.
Needle-nose pliers: Also called trimming pliers, they are mainly used to cut single-stranded and multi-stranded wires with smaller diameters, bend single-stranded needle-nose pliers wire joints, strip plastic insulation, etc. It is also used by electricians (especially It is one of the tools commonly used by internal electricians. It consists of a tip, a knife edge and a pliers handle. The handles of electricians' needle-nose pliers are covered with insulating sleeves with a rated voltage of 500V. Needle-nose pliers are used in narrow spaces because of their sharp heads. The method for bending wire connectors with needle-nose pliers is: first bend the wire end to the left, and then bend it to the right in a clockwise direction close to the screw.
Wire stripper: Wire stripper is one of the tools commonly used by internal electricians, motor repairers, and instrumentation electricians. Its appearance is as shown below. It consists of a knife edge, a crimping port and a plier handle. The handle of the wire stripper is covered with an insulating sleeve with a rated working voltage of 500V. Wire stripping pliers are suitable for stripping plastic and rubber insulated wires and cable core wires. The method of use is: place the wire to be stripped in the cutting edge of the pliers, pinch the two pliers handles with your hands, and then loosen them, the insulation will be separated from the core wire.
Multimeter: It consists of three main parts: meter head, measuring circuit and transfer switch. It is used to measure current and voltage, etc.
