420 Pcs Tool Sets

Description

Item No:MP1911022

420 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)”

1. Overall positioning and advantages of the suit

Full specification coverage of 420 pieces: including wrenches, sleeves, pliers, screwdrivers and other categories of tools, suitable for all scenarios such as home repair, car maintenance, and industrial assembly, without the need to purchase additional single tools.

Material and process advantages:

CRV (chromium-vanadium steel), 50BV30 (boron-vanadium steel), and 45#high-carbon steel are all heat treated, have a hardness of HRC45 -55, are impact resistant and wear resistant, and extend the life of ordinary tools by more than 50%.

2. Role and typical uses of core accessories

(1) 72T Fast Wrench

Efficient disassembly and assembly design:

The 72-tooth ratchet structure can be reset by rotating 5°. It is suitable for quickly tightening bolts in narrow spaces (such as engine compartments and pipe gaps), which is 30% more efficient than ordinary 48-tooth wrenches.

Torque standards and scenarios:

The torque exceeds the German Industrial Standard (DIN), can output a torque of 80-150N·m, and is adapted to M10-M18 bolts (such as car tires, mechanical base bolts).

Typical applications:

Car maintenance: Remove and remove tire bolts within 5 seconds;

Equipment maintenance: Tighten the motor fixing bolts to avoid uneven force of the manual wrench and causing slippage.

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

Material and specification advantages:

50BV30 boron vanadium steel is more impact resistant than ordinary CRV and is suitable for high-torque operations. The specification covers 6-24mm and is suitable for more than 90% of bolts in automobiles, home appliances, construction and other scenarios.

Functional scenarios:

Automotive field: 17mm sleeve removes tires, 19mm sleeve removes engine oil pan;

Construction engineering: 22mm sleeves tighten steel structural flange bolts, making torque transmission more stable when used with wrenches.

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

High-intensity clamping ability:

After heat treatment, the hardness of 45 #steel reaches HRC48. The jaws can cut 1.5mm of iron wire and hold workpieces below 50kg, which is not easy to deform.

Various types of pliers functions:

Needle-nosed pliers: Hold small parts (such as circuit board capacitors) during electrical maintenance;

Oblique pliers: Cut wires and plastic ties;

Water pump pliers: Screw the water pipe joint and adjust the tightness of the clamps.

(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 6mm diameter screwdriver can withstand a torque of 50N·m and is suitable for screwing industrial-grade socket bolts.

Specifications and Scenes:

Specifications range from H2 to H10, which is suitable for bicycle center shaft screws (H6), furniture connectors (H4), and mechanical equipment adjustment bolts (H10).

3. Example of full-scene application combination

(1) Home maintenance scenarios

Electrical fault handling:

Needle-nosed pliers replace the desk lamp wire connector, CRV screwdriver unscrews the screws on the appliance housing, and angled pliers cut off the aging wires.

Furniture assembly:

The 72T quick wrench screws tighten the bolts of the wardrobe connector, the hexagonal screwdriver installs the hexagonal screws in the drawer slide, and the water pump pliers adjusts the tightness of the hinges.

(2) Car maintenance scenarios

Basic maintenance:

Remove the tire with a 17mm sleeve, unscrew the oil filter with a CRV wrench, and cut the oil pipe clamp with a 45 #wire pliers;

Troubleshooting:

A hexagonal screwdriver removes throttle screws, quickly pulls and disassembles generator belt tensioner bolts, and the sleeve combination is used for the chassis suspension system.

(3) Industry and DIY scenarios

Equipment assembly:

Tighten the machine tool base bolts with a 22mm sleeve, quickly adjust the tension of the belt pulley, and install the circuit board wire with point-nosed pliers;

Handmade:

Inclined pliers cut the edges of the metal plate, a hexagonal screwdriver fixed the model bracket, and a CRV sleeve and a wrench completed the connection of the metal parts.

4. Key points of use and maintenance

Torque control: When using a 72T fast lever with a sleeve, avoid exceeding the marked maximum torque (for example, M16 bolts are recommended to be ≤120N·m) to prevent the bolts from breaking.

Rust-proof maintenance: Wipe the engine oil after use and store it in the toolbox (the set comes with 2 B tool boxes to prevent moisture and loss). Dry it in time after working in a humid environment.

Professional scenario expansion: If higher torque is needed (such as bolts above M20), you can use it with a torque wrench for verification, or add a 1-inch socket head (additional adapter parts are required).