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a kind of manual screw tightening tool, single head, headed multi specifications handle ratchet spanner (fixed hole). The main plum blossom sleeve which is made of different specifications and sizes is connected with the Yin key of the plum blossom sleeve through the hinge key and the male bond. As a plum blossom sleeve has two specifications of the plum blossom shaped through holes, so that it can be used for two kinds of specifications of the elastic screw, thereby expanding the use range, saving the cost of raw materials and labor hours. The movable wrench can conveniently adjust the angle of the use of the wrench. The utility model has the advantages of strong applicability, convenient use and low cost.

1/2 double color handle price 12.5 yuan 50PCS/CTN

3/8 double color handle price 10 yuan 72PCS/CTN

1/4 double color handle price 8 yuan 120PCS/CTN

card plus 0.5 yuan monochrome single handle minus 0.5 yuan

4PCS rod sleeve wrench price 30 yuan a set of 50

4PCS connecting rod set the price of 15 yuan a box of 50 sets of

For rotation is arranged in the narrow or inaccessible position the bolt or nut ratchet wrench principle
1, ratchet wrench and the operating rod end can be rotatably connected. A ratchet wrench comprises a weight block which is connected with the operating rod, and the weight block can slide along the length direction of the operating rod, and a front heavy block bearing part which is blocking the heavy block collision is carried out on the operating rod of the front part of the said heavy block. Or, in the rear part of the said heavy block, a rear heavy load bearing part which is blocking the heavy block collision is carried out. Moreover, the operating rod can also with both the front weight bearing portion and the rear weight bearing part

three product features
pressure rod cover device, open the box cover is more efficient, smooth, fast.
safety cylinder lock device, stronger, better anti-theft performance.
sand paint surface, anti scratch, anti rust ability dissolved.
unique box cover and a box body combined structure, firm.
specially designed R angle heavy drawer handle, pull convenient.
double ball slide design, with self-locking function.
plastic bag side handle, drag more easily.
ratchet wrench

four ratchet wrench torque wrench difference
ratchet spanner. A manual screw tightening tool, single head, headed multi specifications handle ratchet spanner (fixed hole). The main plum blossom sleeve which is made of different specifications and sizes is connected with the Yin key of the plum blossom sleeve through the hinge key and the male bond. As a plum blossom sleeve has two specifications of the plum blossom shaped through holes, so that it can be used for two kinds of specifications of the elastic screw, thereby expanding the use range, saving the cost of raw materials and labor hours.
movable handle can be conveniently adjusted using angle wrench. The utility model has the advantages of strong applicability, convenient use and low cost.
2. a torque wrench - also known as a torque wrench or torque wrench, torque is the force and the distance of the product, in the fastening screws, bolts, nuts, threaded fasteners need applied torque control, to ensure that the fastening screw and not as big thread damage due to torque, so with a torque wrench to operate. The first set the upper limit of a required torque, when the applied torque reaches the set value, wrench will send "Kata" sound or a wrench connected with the bending angle, it represents a are tightened to stop loading. 3 the difference between them is that the torque wrench torque can be set. A torque wrench torque wrench) Kata voice is very simple principle can be divided into the following several steps to understand: 1, a torque wrench "Kata" sound issued is prompt has reached you required torque value;
3, torque wrench issued "Kata" is released by their own internal torque structure, the structure of sub pressure spring, torque release joint torque, ejector pin structure composed of.
4, first on the torque wrench set the desired torque value (set by the spring on the top of the pole to the torque joint release pressure) and locking torque wrench, began to tighten the bolts. When the bolt reaches the torque value (when the torque is greater than the pressure of the spring), the effect of the moment will be out of line. In effect generated from a sudden joint percussion, a wrench of the metal shell "Kata" sound. Thus to identify up to the torque value reminder (in fact, just as we arm joint into 15 degree bend in iron pipes in the instant application straight pipe will encounter the principle).
said is the most commonly used manual torque wrench, in addition to electric torque wrench, pneumatic torque wrench.
torque wrench structure called torque meter, torque screwdriver. It is based on the principle of beam bending, torsion bar bending principle and the compression principle of helical spring, can measure the effect of the torque on the size of the nut.
torque wrench and plate type and dial two. Torque wrench with a long piece of elastic rod, the end is provided with a handle, the other end is provided with a square or hexagon head, on a square or hexagonal head set a replaceable sleeve, with ball stuck. A long pointer is also fitted on the top. The scale plate is fixed on the handle seat, and the scale value is 1N (or kg/m). Before use, first install indicator adjustment on the wrench to the required torque and spanner, when the preset torque is reached, on the indicator pointer will be to pin shaft turn one way, finally pointer and the pin shaft collision, through speakers or sensing signal tells the operating.