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PROTO Flex Socket: 3/8 in Drive Size, 3/8 in Socket Size, 12-Point, Std, Chrome - 3/8" Drive SAE Flex Sockets
PROTO3/8" Drive SAE Flex Sockets

PROTO Flex Socket: 3/8 in Drive Size, 3/8 in Socket Size, 12-Point, Std, Chrome

The PROTO Flex Socket (MPN J5273A) is a 3/8" Drive SAE Flex Socket with a 3/8" socket size and 12-point standard configuration. It features a Chrome finish and is Not Tether Capable.

SKU 3G-OTH-307955

Brand
PROTO
Item
Flex Socket: 3/8 in Drive Size, 3/8 in Socket Size, 12-Point, Std, Chrome
Category
3/8" Drive SAE Flex Sockets
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
J5273A
Type
12-Point, Std, Chrome, Not Tether Capable
Socket Size
3/8 in

Technical Documents

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

Product Description

The PROTO Flex Socket (MPN J5273A) is a 3/8" Drive SAE Flex Socket with a 3/8" socket size and 12-point standard configuration. It features a Chrome finish and is Not Tether Capable.

Frequently Asked Questions

What is the PROTO Flex Socket J5273A used for?

The PROTO Flex Socket J5273A is used for turning fasteners in tight or angled spaces where a standard socket cannot reach. Its 12-point design grips hex fasteners securely, and the chrome finish resists corrosion. Common in automotive, industrial, and maintenance applications.

What are the specifications of the PROTO Flex Socket J5273A?

The PROTO Flex Socket J5273A has a 3/8 in drive size and a 3/8 in socket size. It is a 12-point, standard-length, chrome-finished socket that is not tether capable. The manufacturer part number is J5273A. It is designed for SAE fasteners.

Where to buy the PROTO Flex Socket J5273A worldwide?

3G Electric supplies the PROTO Flex Socket J5273A to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time. As a global industrial solutions provider, we source genuine PROTO tools for your needs.

How to select the correct PROTO Flex Socket size?

To select the correct PROTO Flex Socket, match the drive size to your ratchet or wrench (3/8 in drive for this model) and the socket size to the fastener head (3/8 in for SAE). Ensure the socket type (12-point) matches the fastener. For tight spaces, the flex feature allows angle adjustments.

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 sae flex sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
PROTO Flex Socket: 3/8 in Drive Size, 7/16 in Socket Size, 12-Point, Std, Chrome, Not Tether Capable (MPN J5274A)
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PROTO Flex Socket: 1/4 in Drive Size, 7/16 in Socket Size, 12-Point, Std, Chrome, Not Tether Capable (MPN J4774TA)

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