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

The PROTO J5261B is a 3/8" Drive Hand Socket Extension with a 3/8 in input and output drive size and an 8 in overall length. It features a Black Oxide finish, is Not Insulated, and Locking is Not Included. This…

SKU 3G-OTH-319436

Brand
PROTO
Item
Socket Extension: 3/8 in Input Drive Size, 3/8 in Output Drive Size, 8 in Overall Lg
Category
3/8" Drive Hand Socket Extensions
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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.

Technical Specifications

PROTO
Manufacturer Part Number
J5261B
Type
Std
Overall Lg
8 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 J5261B is a 3/8" Drive Hand Socket Extension with a 3/8 in input and output drive size and an 8 in overall length. It features a Black Oxide finish, is Not Insulated, and Locking is Not Included. This standard extension is manufactured by PROTO.

Frequently Asked Questions

What is the PROTO J5261B socket extension used for?

The PROTO J5261B is a 3/8" drive hand socket extension used to reach recessed fasteners in automotive, industrial, and mechanical applications. Its 8-inch length provides extra reach while maintaining torque transfer from the ratchet to the socket.

What are the specifications of the PROTO J5261B socket extension?

The PROTO J5261B has a 3/8 in input and output drive size, an 8 in overall length, and a standard type. It features a Black Oxide finish, is Not Insulated, and Locking is Not Included. The manufacturer part number is J5261B.

Where to buy the PROTO J5261B socket extension worldwide?

3G Electric supplies the PROTO J5261B socket extension worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the right PROTO socket extension length?

Select a PROTO socket extension length based on fastener depth and clearance. The J5261B offers an 8 in length for moderate reach. For deeper applications, choose longer extensions; for tight spaces, shorter ones. Ensure drive size matches 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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