The JCB 4032TH (60979) is a high-quality 3-piece deep impact socket set specifically designed for demanding tasks involving impact tools. Each socket is thin-walled and deep, making it perfect for reaching bolts and nuts in confined or recessed spaces — especially useful for alloy wheels and tight automotive applications.
Features
:- Thin-Walled & Deep Design : Ideal for working in narrow or recessed spaces.
- Impact Rated (Cr-Mo Steel) : Made from Chrome Molybdenum steel for durability under high torque and repeated impact use.
- 6-Point Hex Profile : Reduces the risk of rounding fasteners and ensures a secure grip.
- Essential Sizes : Includes the three most common sizes — 17 mm, 19 mm, and 21 mm.
- Professional Grade : Built for use with pneumatic or electric impact wrenches.
- Portable Case Included : Comes in a sturdy plastic carry case for easy organization and transport.
Applications
:1. Automotive / Vehicle Maintenance :
Removing and installing wheel lug nuts
2. Tire Shops / Wheel Service :
Rapid tire changes, wheel balancing, rotation
3. Suspension & Brake Work :
Disassembly of components near or on the wheel hub
4. Alloy Wheel Protection :
Preventing damage to delicate or coated rims
5. DIY Vehicle Repairs :
Home maintenance like seasonal tire swaps
6. Motorsports / Trackside Use :
Fast pit changes for wheels or suspension
Usage
:User Instructions :
1. Choose the Correct Socket Size
- Identify the size of the wheel lug nuts or bolt you need to remove or tighten.
Use :
- 17 mm for many European & Japanese cars (e.g., Toyota, VW)
- 19 mm for most standard passenger vehicles
- 21 mm for larger SUVs, trucks, or vans
Check your car manual or use a lug nut gauge if unsure.
2. Select Your Tool
Compatible with:
- Impact wrench (electric or pneumatic)
- Breaker bar (for manual loosening)
- Torque wrench (for precise tightening)
Only use with impact-rated tools — these sockets are built to handle high torque.
3. Attach the Socket
- Push the selected socket onto your 1/2″ drive tool until it clicks or locks in.
- Make sure the socket fits securely and doesn’t wobble.
4. Place the Socket on the Lug Nut
- Align the socket squarely on the lug nut or bolt.
- The 6-point design grips the flat sides of the nut, preventing slippage and rounding.
Thin-walled design helps fit into tight areas near alloy wheels without scratching or damaging the rims.
5. Loosen or Tighten the Nut
To loosen:
- Use an impact wrench or breaker bar.
- Turn counter-clockwise.
To tighten:
- Start threading the nut by hand.
- Use the impact wrench lightly to snug it.
- Then use a torque wrench to tighten to the manufacturer’s recommended torque setting.
Never over-tighten lug nuts with an impact wrench — always finish with a torque wrench.
6. After Use
- Remove the socket from the tool.
- Wipe clean with a dry cloth.
- Inspect for damage or wear.
- Store in the original case or a dry toolbox.
Maintenance :
1. Clean After Every Use
- Wipe each socket with a dry cloth to remove :
- Dirt
- Brake dust
- Grease or road grime
- For stubborn residue, use a mild degreaser or brake cleaner, then dry thoroughly.
Cleaning helps prevent corrosion and preserves the protective coating.
2. Inspect for Damage
Regularly check for :
- Cracks or chips, especially around the drive end or socket opening
- Rounding or deformation on the hex points
- Rust or pitting on the surface
Do not use damaged sockets — they can fail under high torque.
3. Apply Light Lubrication
Apply a thin coat of machine oil or WD-40 to :
- Prevent rust
- Maintain smooth fitting on the drive tool
Especially important if stored in humid or outdoor environments.
4. Store Properly
- Keep sockets in their original case or in a dry, organized tool tray.
- Avoid tossing them loosely in a toolbox where they can get scratched, damaged, or misplaced.
The original packaging or foam insert protects the thin walls from dings or cracking.
5. Use Properly
- Use only with impact-rated tools (impact wrench, torque wrench, breaker bar).
- Avoid using with manual ratchets for high-torque jobs, as that can stress the thin wall design.
- Never exceed manufacturer torque limits.
Avoid hammering or forcing sockets onto bolts — that causes microfractures.
6. Avoid Exposure to Moisture
- Keep the sockets dry during storage.
- If they get wet, dry immediately and re-oil lightly.
Moisture can lead to rusting, even on high-quality finishes.