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PROTO Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size - 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

The PROTO J5263 is a 3/8" Drive Hand Socket Extension with a 3/8" input and output drive size and a 17 3/16" overall length. It is constructed from chrome and is not insulated, with locking not included. This…

SKU 3G-OTH-319449

Also listed as: J 5263 · J-5263

Brand
PROTO
Item
Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size
Category
3/8" Drive Hand Socket Extensions
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J5263
Overall Lg
17 3/16 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 J5263 is a 3/8" Drive Hand Socket Extension with a 3/8" input and output drive size and a 17 3/16" overall length. It is constructed from chrome and is not insulated, with locking not included. This PROTO-branded extension is designed for use with 3/8" drive sockets.

Frequently Asked Questions

What is the PROTO J5263 socket extension used for?

The PROTO J5263 is a 3/8" drive hand socket extension used to extend the reach of a ratchet or torque wrench when turning fasteners. It is commonly applied in automotive repair, industrial maintenance, and assembly work where access to recessed bolts or nuts is limited.

What are the specifications of the PROTO J5263 socket extension?

The PROTO J5263 has a 3/8" input and output drive size with a 17 3/16" overall length. It is made of chrome, is not insulated, and does not include a locking feature. The manufacturer part number is J5263, and it is designed for use with 3/8" drive sockets.

Where to buy the PROTO J5263 socket extension worldwide?

You can source the PROTO J5263 socket extension through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this PROTO-branded extension.

How to select the correct PROTO socket extension length?

Select a PROTO socket extension length based on the depth of the fastener recess and clearance around the work area. The J5263 offers a 17 3/16" length for deep access. Ensure the drive size matches your ratchet and socket—3/8" in this case—and that the extension is not used for impact applications unless rated.

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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