









Milwaukee 5/8" Spark Plug Socket 3/8" Drive 48-22-9551
MAXIMIZE IGNITION SERVICE EFFICIENCY WITH SECURE PLUG RETENTION
Engine maintenance requires a delicate balance of torque and protection, especially when dealing with the fragile ceramic insulators of modern spark plugs. The Milwaukee 5/8" Spark Plug Socket is engineered to mitigate the risks of dropped plugs and cracked porcelain through a specialized dual-material rubber retainer that provides a superior grip compared to standard inserts. The external hex at the base is a critical mechanical design choice, allowing technicians to utilize a wrench in tight engine bays where a traditional ratchet head may lack the necessary clearance. This tool is built to withstand the chemical rigors of a professional garage while ensuring the precision required for high-stakes ignition work.
- / Dual-material rubber retainer ensures the spark plug remains securely seated during both extraction and installation.
- / Precision outer knurling provides the tactile grip needed for hand-starting threads to eliminate the risk of cross-threading.
- / External hex base allows for wrench-driven operation in confined engine compartments with limited overhead space.
- / Stamped size markings provide permanent visibility and easy identification even after years of exposure to oil and solvents.
- / Chemical-resistant construction ensures the internal retainer and chrome finish withstand the harshest automotive fluids.
TECHNICAL SPECIFICATIONS
| Drive Size | 3/8 in. |
| Socket Size | 5/8 in. |
| Socket Type | 6-Point |
| Material | Chrome Vanadium Steel |
| Warranty | Lifetime Guarantee |
WHAT'S IN THE BOX
(1) 5/8" Spark Plug Socket (48-22-9551)
Original: $17.99
-65%$17.99
$6.30Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MAXIMIZE IGNITION SERVICE EFFICIENCY WITH SECURE PLUG RETENTION
Engine maintenance requires a delicate balance of torque and protection, especially when dealing with the fragile ceramic insulators of modern spark plugs. The Milwaukee 5/8" Spark Plug Socket is engineered to mitigate the risks of dropped plugs and cracked porcelain through a specialized dual-material rubber retainer that provides a superior grip compared to standard inserts. The external hex at the base is a critical mechanical design choice, allowing technicians to utilize a wrench in tight engine bays where a traditional ratchet head may lack the necessary clearance. This tool is built to withstand the chemical rigors of a professional garage while ensuring the precision required for high-stakes ignition work.
- / Dual-material rubber retainer ensures the spark plug remains securely seated during both extraction and installation.
- / Precision outer knurling provides the tactile grip needed for hand-starting threads to eliminate the risk of cross-threading.
- / External hex base allows for wrench-driven operation in confined engine compartments with limited overhead space.
- / Stamped size markings provide permanent visibility and easy identification even after years of exposure to oil and solvents.
- / Chemical-resistant construction ensures the internal retainer and chrome finish withstand the harshest automotive fluids.
TECHNICAL SPECIFICATIONS
| Drive Size | 3/8 in. |
| Socket Size | 5/8 in. |
| Socket Type | 6-Point |
| Material | Chrome Vanadium Steel |
| Warranty | Lifetime Guarantee |
WHAT'S IN THE BOX
(1) 5/8" Spark Plug Socket (48-22-9551)






















