157 Pcs Tool Sets

Item No:MP1911023

 

"157 pcs Tool sets
Fast wrench 72T (torque super German standard)/Socket head CRV (50BV30)/Pliers wrench 45# Heat treated high carbon steel/Screwdriver hex head CRV (6150)
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1. Overall positioning and advantages of the suit

157 pieces of precise specification coverage: including core tools such as wrenches, sleeves, pliers, and screwdrivers, eliminating redundant accessories, focusing on high-frequency scenarios such as home maintenance, car maintenance, and basic industrial assembly. The cost performance ratio is better than the full-specification large set.

 

Professional materials and craftsmanship:

CRV (chromium-vanadium steel), 50BV30 (boron-vanadium steel), and 45#high-carbon steel are all heat treated, have a hardness of HRC45 - 55, are resistant to impact and wear, and are suitable for medium-intensity operations (such as household and small machinery maintenance).

 

 

2. Role and typical uses of core accessories

 

(1) 72T Fast Wrench

Efficient operation design:

The 72-tooth ratchet structure can be reset by rotating 5 °. The efficiency of screwing bolts in narrow spaces (such as water pipes and back of appliances) is 30% higher than that of ordinary wrenches, and there is no need to frequently disengage the bolts and re-engage them.

 

Torque standards and scope of application:

The torque exceeds the German Industrial Standard (DIN), can output 60 - 120 N·m torque, and is adapted to M8-M16 bolts (such as household car tires, furniture connectors, small motor fixing bolts).

 

Typical scenario:

Quickly disassemble and disassemble 17 mm tire bolts when changing tires;

Tighten the 14 mm expansion bolt when installing the air conditioner external unit bracket.

 

(2) Socket Head CRV (50BV30 material sleeve)

Material and specification advantages:

50BV30 boron vanadium steel has stronger impact resistance than ordinary CRV steel. The specification covers 8 - 22 mm and covers 90% of the bolt size in home and automobile maintenance (such as 8 mm electrical screws, 19 mm engine bolts).

 

Functional application:

Family scene: 10 mm sleeve disassembly and disassembly of washing machine base bolts;

Car scene: The 13 mm sleeve unscrews the fuel tank cap fixing screws, and the 22 mm sleeve handles the truck battery connection wire bolts.

 

(3) Pliers Wrench 45 #Heat Treated High Carbon Steel

High-intensity operation ability:

After heat treatment, the hardness of 45 #steel reaches HRC48. The jaws can cut iron wires below 2 mm and hold workpieces within 30 kg, and are not easy to deform.

 

Various types of pliers functions:

Needle-nosed pliers: Hold small components of the circuit board (such as resistors and capacitors) during electrical maintenance;

Oblique pliers: Cut wires and plastic ties;

Water pump pliers: Screw the water pipe connector and adjust the bicycle brake cable clamp.

 

(4) Screwdriver Hex Head CRV (6150 material CRV hexagonal screwdriver)

Torsion resistance and durability:

The bending strength of 6150 chromium-vanadium steel is 40% higher than that of ordinary carbon steel. The 6 mm diameter screwdriver can withstand a torque of 30 N·m, making it suitable for screwing industrial-grade socket bolts (such as bicycle center shafts and furniture hardware).

 

Specifications and Scenes:

Specifications range from H2 to H8, adapting glasses screws (H2), furniture connectors (H4), and bicycle pedal fixing screws (H6).

 

 

3. Typical application scenario combinations

 

(1) Daily family maintenance

Electrical fault handling:

Needle-nosed pliers replace the chandelier wire connectors, CRV hexagonal screwdriver unscrews the router housing, and angled pliers trim excess cables;

 

Furniture assembly and maintenance:

The 72T quick trigger tightens the wardrobe side plate bolts, the 10mm sleeve installs the drawer slide rails, and the water pump pliers adjusts the tightness of the door and window hinges.

 

(2) Basic vehicle maintenance

Tire and chassis maintenance:

The 17 mm sleeve can quickly disassemble and disassemble the tire bolts, CRV can quickly twist the engine lower guard plate screws, and angled pliers cut off the aging oil pipe clamps;

 

Easy troubleshooting:

The H6 hexagonal screwdriver removes the air filter cover, the 13 mm sleeve handles the battery connection wire, and the needle-nose pliers adjusts the wiper link position.

 

(3) DIY and small engineering

Handmade:

Inclined pliers cut the edges of aluminum profiles, CRV sleeves are matched with quick levers to complete the connection of model brackets, and H4 screwdrivers fix wooden handicraft hardware;

 

Home decoration assistance:

The 14mm sleeve is tightened with the expansion bolt to fix the shelf, the water pipe angle valve is installed with the water pump pliers, and the 72T quick trigger quickly adjusts the keel connection pieces.

 

 

4. Key points of use and maintenance

Torque control: When using a 72T quick trigger with a sleeve, avoid applying excessive force to bolts above M16 (for example, M16 bolts are recommended to be ≤100N·m) to prevent bolt slippage or tool damage.

 

Rust-proof maintenance: Wipe the tools with a dry cloth after use, apply a thin layer of engine oil after working in a humid environment, and store them in the kit's own tool box (anti-loss and moisture-proof).

 

Suggestion for scenario expansion: If you need to deal with large bolts above M20 or professional industrial scenarios, you can add an additional 1-inch socket adapter or torque wrench to use it with the kit tool.

 

 

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