Join
Proto save
£0.21
FOUR FLAT sides on socket deter rolling.
Wrench ready FOUR FLAT sides.
Stamped sizes for easy visibility.
Type | Metric Standard |
Size System | Metric |
Product Type | Sockets & Sets |
Socket Size | 5.5mm |
Size | 5.5mm |
Drive Size | 1/4in |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.