_{Carbon steel nickel-plated flat-head straight-pattern insert, grinding tool, precision hardware accessory}

Auto Maintenance & Repair Tools

1. Specific Categories & Application Scenarios

• Sockets (Phillips sockets, hex sockets, socket heads)
• Extension bars (extension rods, universal joints)
• Ratchet wrenches (ratchet wrenches, reversible ratchet wrenches)
• Jacks (hydraulic jacks, mechanical jacks)
• Tire wrenches (cross tire wrenches, socket tire wrenches)
• Spark plug sockets
• Wrenches (torque wrenches, open-end wrenches)
• Basic automotive diagnostic tools
• Oil filter wrenches
• Brake service tools
• Shock absorber removal and installation tools, etc.

2. Key Material Selection Requirements

• Material Selection

   

  Core components prefer Chrome Vanadium Steel (CR-V) and Chrome Molybdenum Steel (CR-MO). Alloy structural steel can be used for high-end products. Jack cylinders can be made of high-strength cast iron or aluminum alloy.
   
  • CR-V: high toughness and impact resistance, suitable for torque-bearing tools such as sockets and wrenches.
  • CR-MO: high strength, high toughness and corrosion resistance, ideal for heavy-duty, high-temperature conditions (e.g., engine repair), the preferred material for high-end auto repair tools.
  • High-strength cast iron / aluminum alloy cylinders: ensure load capacity and sealing performance of jacks, preventing bursting during use.
   
• Torque & Impact Performance

   

  Auto tools require extremely high torque resistance. Materials must be evaluated for tensile strength, yield strength and impact toughness to avoid breakage or deformation during use.

   

  For load-bearing tools such as jacks, materials with high compressive strength are required to ensure safety and meet heavy-duty automotive repair demands.
   
• Wear Resistance & Fatigue Resistance

   

  Contact surfaces of sockets, wrenches and similar tools must use wear-resistant materials or undergo hardening treatments (e.g., high-frequency quenching) to prevent wear and slippage after long-term use.

   

  Moving parts (e.g., the ratchet mechanism in ratchet wrenches) require fatigue-resistant materials to maintain stable performance and extend service life after repeated operation.
   
• Working Condition Adaptability

   

  Tools must receive anti-rust and anti-corrosion treatments (e.g., chrome plating, blackening) to avoid jamming caused by rust in oily and dusty environments.

   

  Structural design is optimized for operation in confined automotive spaces (e.g., extended sockets, universal joints) to improve usability.

   

  Tools such as jacks include anti-slip and anti-tipping designs for safe operation.
   

3. Our Advantages in Processing & Assembly

• Component Manufacturing

   

  We produce individual parts for auto repair tools, including socket heads, extension bars, ratchet wrench bodies, jack cylinders, tire wrench heads, etc.

   

  We provide forging, machining, heat treatment, surface hardening and other processes to ensure torque capacity, impact resistance and wear resistance.
   
• Finished Product Assembly

   

  We complete full assembly of auto maintenance tools: socket & extension bar connection, ratchet mechanism assembly, hydraulic jack system assembly, etc.

   

  Assembly precision and safety performance are strictly controlled to meet heavy-duty automotive repair requirements.
   
• Customization & One-Stop Service
   
  We support OEM / private label production.
   
  Custom specifications are available per customer requirements: socket sizes, torque ratings, vehicle model compatibility, etc.
   

  We provide one-stop service from parts processing to finished product delivery, and can manufacture supporting accessories such as socket adapters and jack seals.

   

  We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

   

  Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

   

  Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

   

  Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

   

  Our customers include , bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.

   

• OUR CAPACITY
  Main product names:	Stainless steel screws, carbon steel screws, pins, rivets, nuts,
  	eccentric nails, embedded parts, and other fasteners.
  Business Type	Factory / Maufacture
  Service	CNC Machining
  	Turning and Milling
  	CNC Turning
  	Cold heading
  	stamping
  	Assembly Service
  Material	1). Aluminum: AL 6061-T6, 6063, 7075-T etc
  	2). Stainless steel:303,304,304L,316L,316F,630,410,420,430, etc
  	3). Steel: 4140, Q235, Q345B,20#,45# 1215,12L14 ,1144,1006,1008,1010,1015,1018 ,10B21,1035,1065 etc.
  	4)Alloy steel:5140,4135,4140,3435,5120,415 ,435,440 etc
  	5). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
  	6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
  	7). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc.
  Finish	Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish,
  	Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing,
  	electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench),
  	Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc.
  Drawing format	STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples.
  Tolerance	+/-0.01mm ~ +/-0.05mm
  Surface roughness	Ra 0.1~3.2
  Inspection	Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM
  	Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge