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PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 2 23/32 in Overall Lg - Hex Bit Sockets
PROTOHex Bit Sockets

PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 2 23/32 in Overall Lg

The PROTO Socket Bit (MPN J4990-10M) is a hex bit socket with a 3/8 in drive size and a 10 mm hex tip size. It features a fixed insert design and has an overall length of 2 23/32 in. This PROTO-branded tool is a hex…

SKU 3G-OTH-305253

Brand
PROTO
Item
Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 2 23/32 in Overall Lg
Category
Hex Bit Sockets
Available to Order
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Technical Specifications

PROTO
Manufacturer Part Number
J4990-10M
Type
Hex Tip, Fixed Insert
Overall Lg
2 23/32 in
Tip Size
10 mm
View Full Spec Sheet

Technical Documents

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

Product Description

The PROTO Socket Bit (MPN J4990-10M) is a hex bit socket with a 3/8 in drive size and a 10 mm hex tip size. It features a fixed insert design and has an overall length of 2 23/32 in. This PROTO-branded tool is a hex bit socket type.

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 J4990-10M socket bit used for?

The PROTO J4990-10M hex bit socket is used for driving hex-head fasteners in industrial assembly, maintenance, and repair applications. Its 3/8 in drive and 10 mm hex tip make it suitable for automotive, machinery, and equipment work where precise torque and secure bit engagement are required.

What are the specifications of the PROTO J4990-10M socket bit?

The PROTO J4990-10M is a hex bit socket with a 3/8 in drive size and a 10 mm hex tip size. It features a fixed insert design and an overall length of 2 23/32 in. The manufacturer part number is J4990-10M, and it is branded as PROTO.

Where to buy the PROTO J4990-10M socket bit worldwide?

You can source the PROTO J4990-10M hex bit socket 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 tool.

How to select the correct PROTO socket bit for a job?

To select the correct PROTO socket bit, match the drive size (3/8 in) to your ratchet or driver, and ensure the hex tip size (10 mm) fits the fastener. Consider the fixed insert design for applications requiring a non-removable bit. Always verify overall length (2 23/32 in) for clearance in tight spaces.

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 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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