What is a hand tool
Manual tools, as the name implies, are the tools used by people in manual work. It is a classification of the hardware industry, which will be used in decoration. It is generally used in special environments, such as inflammable, explosive and extremely harsh conditions.
2 Classification of manual tools
Hand tools can be divided into wrench type, pliers type, screwdriver type, tape measure type, hammer type, sleeve type, cutting type, scissors type, set set type, and auxiliary type such as tool car, etc., each type has different models.
The spanner has the open spanner, the double plum spanner, the ratchet wheel dual-use spanner, the dual-use spanner, the tubing spanner, the T-type socket spanner, the cross socket spanner, the movable spanner and so on category;
Pliers are wire pliers, sharp nose pliers, diagonal nose pliers, stop ring pliers, carp pliers, water pump pliers, pipe pliers, such as pliers categories;
Screwdriver has a word, cross, meters, hexagonal, pattern and other categories;
Sleeves are available in 1/4", 3/8" and 1/2" sizes, "which are inches; At the same time, each specification has 6 Angle sleeve and 12 Angle sleeve;
Sleeve type is divided into pneumatic sleeve and manual sleeve;
Hammer has claw hammer, fitter hammer, round head hammer, rubber hammer and installation hammer points;
The cutting class has the file, the diamond file, the iron shears, the aviation scissors, the box cutter, the square pipe saw, the pipe cutter, the bolt cutter and so on;
In material, there are chromium vanadium steel, carbon steel, alloy steel and so on.
3 Manual tools and use
wrench
The hammer
The screwdriver
A tape measure
pliers
Using the principle of leverage to turn bolts, nuts, screws and other threads, usually at one end or both ends of the handle handle, when using along the direction of thread rotation in the handle to apply external force, you can turn bolts, nut bolts, nut opening or sleeve hole.
[ Hex wrench usage > > Socket wrench Specifications and application & GT;& GT;
Used to knock something to move or deform, often to hammer a nail, correct it, or break it open. A common hammer is a handle with a metal top. A flat surface on the top for hammering, and a hammer head on the other side, with horns and wedges for pulling out nails. Hammer usage method & GT;& GT;
Used to turn screws, usually with a thin wedge head that can be inserted into a slot or recess of the screw head, and a hand-held handle. When in use, align the special shaped end of the screwdriver with the hole on the top of the screw and turn the handle. Screwdriver Specifications type & GT;& GT;
Most commonly seen is steel tape measure, construction and decoration commonly used for tenon line, line, groove line and other aspects of the line. Specific can be divided into tape measure, fiber tape measure, waist measure and so on. Luban ruler, wind water ruler, wen meter also belong to steel tape measure.
It is used to clamp and fix the workpiece or bend, twist or cut off the metal wire. The shape is v-shaped, including the handle, clamp jaw and clamp mouth. When using, the clamp mouth is facing the inside, and the little finger is stretched between the two clamp handles to resist the clamp handle and open the clamp head to clamp the item.
Combination pliers
Long nose pliers
Wire stripping pliers
multimeter
Wallpaper knife
Clamp and cutting tools, teeth used to tighten and loosen nuts, knife edge used to cut soft wire rubber or plastic insulation layer, chaffa mouth can cut steel wire wire and other metal wire, with rated voltage 500V insulation sleeve insulation plastic can cut wire.
It is used for cutting single strand and multi-strand wire with fine wire diameter and stripping plastic insulation layer and bending ring for wire joint of single strand needle-nose pliers. It is equipped with insulating sleeve with rated voltage of 500V, suitable for narrow space. Bend the wire connector with needle-nose pliers first to the left and then bend clockwise to the right next to the screw.
Insulated sleeve with rated working voltage 500V is set on clamp handle, suitable for peeling rubber insulated wire, plastic and cable core. When using, place the wire to be peeled in the cutting edge of the clamp head, and force the two clamp handles towards the middle with moderate force to separate the insulation skin from the core wire. [ Wire stripper specifications model and use method & GT; >
It is composed of three main parts, such as measuring circuit, meter head and transfer switch, which is mainly used for measuring current and voltage. [ Multimeter usage method > >
The sharp blade is used to cut wallpaper and so on, hence the name "wallpaper knife", also known as "box cutter". Decoration, decoration, billboard industry often used.
The electrician knife
hacksaw
file
Test pencil
Spirit level
A commonly used cutting tool, the root of the blade and the handle are hinged directly, with a scale line and scale marking, can be used for cutting measurement. Blade collection has multiple functions, only an electrician's knife can be used to complete the operation of wire connection.
It can cut off round steel, Angle steel, flat steel and workpiece of smaller size. The serrated direction is installed forward to fix the item. The left thumb of the left hand is serrated to the left, and the right hand holds the saw handle.
A hand tool with a number of fine teeth on its surface, used to file a work piece. Used for micromachining metal, leather, wood and other surface layers. File usage >>
To test whether the wire is charged, when using the test pen, be sure to touch the metal part of the end of the test pen with your hand, index finger against the pen cap end, thumb and middle finger, ring finger gently pinch the pen, the metal nib into the socket hole.
A level with a horizontal bubble can be used to check, debug, and measure whether the equipment is installed horizontally. Place a level on the object to be measured. If the level bubbles are on the high side, lower the level or raise the level on the opposite side to adjust the bubbles to the center. [ Method of using level > > >
4 Manual Tool Selection Guide
Whether there are cloudy oil stains on the surface
Every involves hardware products, must see the treatment of rust prevention technology is not home. When you buy and buy, you can see whether the product will leave thick oil stains on your hands and whether it will be sticky on your hands. If there is this product, it is generally unqualified. In addition, it can be identified by smell. If the product has a pungent odor, it is generally neglected when it is made.
Whether the steel seal is clear
Hardware products can print brand words, label commonly, although small, but factory produces mostly use steel printing technology, and undertake pressing word before processing without overheating, because this font although small but sunken deep, very clear. The font of counterfeit products is fuzzy, because the printing technology is rough, the font is floating on the surface, some can even be easily erased by hand.
Whether the outer packing is clear
Factory brands have special designers to design external packaging, and arrange the production conditions of the factory production, packaging from lines to color blocks are very clear. Part of the imported brand accessories packaging also has a special design to protect intellectual property rights.
"Strain your ears" for sounds
Shake the product and listen for any noise. Most of the production conditions of counterfeit products are backward, completely manual workshop operation, the production process will inevitably be mixed with sand such impurities, hidden in the bearing body, so when rotating will give out noise. This is the biggest difference from the factory brand, which strictly implements production standards and uses machines.