PROTO Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size, 1 3/4 in Overall Lg
The PROTO J5259 is a 3/8" drive hand socket extension with a 3/8" input and output drive size and 1 3/4" overall length. It is made of chrome, is not insulated, and does not include a locking feature.
SKU 3G-OTH-319423
Also listed as: J 5259 · J-5259
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The PROTO J5259 is a 3/8" drive hand socket extension with a 3/8" input and output drive size and 1 3/4" overall length. It is made of chrome, is not insulated, and does not include a locking feature.
Frequently Asked Questions
What is the PROTO J5259 socket extension used for?
The PROTO J5259 is a 3/8" drive hand socket extension used to reach recessed fasteners in automotive, industrial, and maintenance applications. Its chrome finish resists corrosion, and the non-insulated design is intended for general mechanical work, not live electrical tasks.
What are the specifications of the PROTO J5259 socket extension?
The PROTO J5259 has a 3/8" input and output drive size, 1 3/4" overall length, and a standard (Std) type. It is made of chrome, not insulated, and does not include a locking feature. The manufacturer part number is J5259.
Where to buy the PROTO J5259 socket extension worldwide?
3G Electric supplies the PROTO J5259 socket extension to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your location. Contact us for a quote and lead time on this PROTO tool.
How to select the correct socket extension length for a job?
Choose a socket extension length, like the PROTO J5259 at 1 3/4", based on fastener depth and clearance. A shorter extension offers better torque control and less wobble, while longer extensions reach deeper recesses. Always match drive size (3/8") to your ratchet and socket.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO 3/8" drive hand socket extensions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
