We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

PROTO Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size, 1 3/4 in Overall Lg - 3/8" Drive Hand Socket Extensions
PROTO3/8" Drive Hand Socket Extensions

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

Brand
PROTO
Item
Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size, 1 3/4 in Overall Lg
Category
3/8" Drive Hand Socket Extensions
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

PROTO
Manufacturer Part Number
J5259
Type
Std
Overall Lg
1 3/4 in
Output Drive Size
3/8 in

Technical Documents

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO 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.

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