13-piece Set Of Impact Batch Head Screwdriver Set Iron Box Chromium Vanadium Steel

Item No:MP65124

 

The 13-piece impact batch head screwdriver set (made of iron box chromium-vanadium steel) is a tool combination specially designed for disassembling and disassembling high-strength screws. Through the high hardness characteristics of chromium-vanadium steel and the structural design of the impact batch head, it realizes the control of complex conditions. Efficient operation of screws. The following is a detailed description of its core role, technical advantages and application scenarios:

1. Core role and use

1. Industrial-grade screw disassembly

--High-strength screw removal

It is suitable for rusty or stuck screws in scenarios such as automobile engine compartments and mechanical equipment bases. Use the impact head to match the electric wrench (or manual impact screwdriver) to use the instantaneous impact force to destroy the rusty adhesion between the screw and the screw hole to avoid the traditional screwdriver slipping or breaking the screw.

During the maintenance of construction machinery, when removing high-strength bolts of track shoes, hydraulic pumps and other components, the impact batch head can withstand a torque of 30-50N·m to prevent the batch head from cracking (ordinary batch head can only withstand 10-15N·m).

---Fixed installation of metal parts

In scenarios such as steel structure factories and bridge supports, an impact batch head is used in conjunction with an electric drill to tighten high-strength screws. The anti-slip teeth on the head of the batch head can reduce slippage and ensure connection strength (such as quick tightening of M8-M12 screws).

 

2. Vehicle repair and maintenance

---Engine component maintenance

When removing automobile cylinder head screws and oil pan bolts, the impact batch head can withstand the metal expansion stress in the high temperature environment of the engine and avoid annealing and softening of the batch head (chromium-vanadium steel has a quenching temperature of 850℃, and its temperature resistance is better than ordinary carbon steel).

---Chassis and tire disassembly

Tire screws are prone to rust due to long-term stress. They can be quickly disassembled using impact heads and pneumatic wrenches. The 6-angle and 12-angle heads in the 13-piece set are adapted to the tire screw specifications of different models (such as Mercedes-Benz, BMW and other models commonly used 12-angle anti-theft screws).

 

3. Construction and decoration engineering

---Metal frame fixation

When installing aluminum alloy doors and windows and light steel keel ceilings, the impact head can be tightened with tapping screws to concrete and red brick walls. The cross/word design at the tip of the head can prevent slipping (traditional head is easy to slip on hard materials).

---Installation of outdoor facilities

The screws of outdoor billboards and guardrails are easy to rust due to wind and rain, and the anti-rust coating (such as nickel plating) on the impact head can reduce corrosion and prolong the service life of tools (the anti-rust time in salt spray test exceeds 500 hours).

 

4. Electronic equipment and precision machinery

---Special screw disassembly

The 13-piece set usually contains special batch heads such as Torx and internal hexagon. It is suitable for disassembling and disassembling anti-removal screws in notebook computers, cameras and other equipment. The precise biting of the head of the batch head can avoid scratching precision parts (such as mobile phone motherboard screw groove).

---mold maintenance

The fixing screws of the injection mold are easy to bite due to long-term high-pressure injection molding. The impact head and hydraulic wrench can slowly apply impact force to gradually loosen the screws and prevent the mold from being deformed due to forced disassembly.

 

2. Technical advantages of chromium-vanadium steel material and iron box set

1. Core characteristics of chromium vanadium steel (Cr-V)

---High strength and toughness

Chromium vanadium steel contains chromium (Cr) and vanadium (V) alloy elements, has a hardness of up to HRC58-62 (ordinary carbon steel only HRC40-45), and has an impact toughness 30% higher than carbon steel. It is suitable for withstanding high-frequency impact forces (such as torque impact when an electric wrench is rotated at high speed).

---fatigue resistance

After multiple impact uses, chromium-vanadium steel batch heads are not prone to head wear or fracture (for example, ordinary batch heads may break after 50 uses, and chromium-vanadium steel models can be used more than 200 times), which is especially suitable for assembly line operations.

 

2. Advantages of 13-piece combination and iron box storage

---Full coverage of specifications

A typical 13-piece set contains: cross (PH1/PH2/PH3), one word (SL4/SL6/SL8), inner hexagon (H3-H10), plum blossom (T20/T25/T30), 6-angle/ 12-angle batch head, adapted to M3-M12 screw specifications, meeting more than 90% of industrial scenarios.

---Rust-proof and moisture-proof storage

The inside of the iron box is made of EVA sponge separation grooves to prevent collision and wear of the batch head. The sealing rubber strip of the box body can isolate the humid air (suitable for storage in humid environments such as workshops and construction sites). It is more durable than storage in plastic bags (the compressive strength of the iron box reaches 50kg, can be stepped on without deformation).

3.Operating skills and precautions

1.Before use:

Select a matching batch head according to the screw notch to avoid forcibly tightening large screws with a small-sized batch head (such as using PH2 to tighten PH3 screws, it may cause the batch head to crack).

Check whether the batch head inside the iron box is cracked or deformed. If the chromium-vanadium steel batch head is worn on the head (such as the cross notch becomes dull), it needs to be replaced in time.

 

2.During impact operation:

The electric wrench needs to be adjusted to "impact mode" and the speed is controlled at 2000-2500rpm to avoid overheating of the batch head caused by high-speed idling (the hardness of chromium-vanadium steel will be reduced if it is higher than 200℃ for a long time).

During manual impact, use a hammer to tap the tail of the batch head, and use the rotating handle to slowly apply the force to prevent excessive instantaneous impact from damaging the screws.

 

3.Maintenance:

After use, wipe the iron filings on the surface of the batch head with kerosene and apply anti-rust oil (a desiccant can be placed in the iron box) to avoid long-term exposure to a humid environment (although chromium-vanadium steel resists corrosion, the salt fog environment still requires regular maintenance).

 

4.Safety Tips:

Wear protective goggles during impact operation to prevent debris from splashing on the tip; the electric wrench must be grounded to avoid the risk of leakage.

 

 

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