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PROTO Socket Bit: 3/8 in Drive Size, Ball Hex Tip, 3/8 in Tip Size, 6 3/32 in Overall Lg - Ball-End Hex Bit Sockets
PROTOBall-End Hex Bit Sockets

PROTO Socket Bit: 3/8 in Drive Size, Ball Hex Tip, 3/8 in Tip Size, 6 3/32 in Overall Lg

The PROTO J4912BD is a ball-end hex bit socket with a 3/8 in drive size and a 3/8 in tip size, featuring a fixed insert design. It has an overall length of 6 3/32 in and is SAE. This socket bit is manufactured by PROTO.

SKU 3G-OTH-305889

Brand
PROTO
Item
Socket Bit: 3/8 in Drive Size, Ball Hex Tip, 3/8 in Tip Size, 6 3/32 in Overall Lg
Category
Ball-End Hex Bit Sockets
Available to Order
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Technical specs
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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.

Technical Specifications

PROTO
Manufacturer Part Number
J4912BD
Type
Ball Hex Tip, SAE
Overall Lg
6 3/32 in
Tip Size
3/8 in

Technical Documents

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

Product Description

The PROTO J4912BD is a ball-end hex bit socket with a 3/8 in drive size and a 3/8 in tip size, featuring a fixed insert design. It has an overall length of 6 3/32 in and is SAE. This socket bit is manufactured by PROTO.

Frequently Asked Questions

What is the PROTO J4912BD ball-end hex bit socket used for?

The PROTO J4912BD is a ball-end hex bit socket used for driving hex fasteners at an angle in tight or hard-to-reach spaces. Its 3/8 in drive and 3/8 in tip size suit automotive, industrial, and maintenance applications where straight access is limited.

What are the specifications of the PROTO J4912BD socket bit?

The PROTO J4912BD has a 3/8 in drive size, a 3/8 in ball hex tip, and an overall length of 6 3/32 in. It features a fixed insert design and is SAE. The manufacturer part number is J4912BD.

Where to buy the PROTO J4912BD ball-end hex bit socket worldwide?

3G Electric supplies the PROTO J4912BD ball-end hex bit socket worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and a quote.

How to select the correct ball-end hex bit socket for a job?

To select the correct ball-end hex bit socket, match the drive size (e.g., 3/8 in) to your ratchet or driver, and the tip size (e.g., 3/8 in) to the fastener. The PROTO J4912BD’s ball tip allows angled access, while overall length (6 3/32 in) affects reach.

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 ball-end hex bit 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 Socket Bit: 1/4 in Drive Size, Ball Hex Tip, 1/8 in Tip Size, 1 1/2 in Overall Lg, SAE (MPN J47701/8B)
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PROTO Socket Bit: 1/4 in Drive Size, Ball Hex Tip, 7/32 in Tip Size, 1 1/2 in Overall Lg, SAE (MPN J47707/32B)
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PROTO Socket Bit: 1/4 in Drive Size, Ball Hex Tip, 7/32 in Tip Size, 1 1/2 in Overall Lg, SAE (MPN J47707/32B)
PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 3 mm Tip Size, 1 7/8 in Overall Lg, Fixed Insert (MPN J4770-3M)
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PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 3 mm Tip Size, 1 7/8 in Overall Lg, Fixed Insert (MPN J4770-3M)

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