Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 2 23/32 in Overall Lg - Hex Bit Sockets
PROTOHex Bit Sockets

PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 2 23/32 in Overall Lg

The PROTO Socket Bit (MPN J49905/16) is a hex bit socket with a 3/8 in drive size and a 5/16 in hex tip size, featuring a Fixed Insert design. It has an overall length of 2 23/32 in and is manufactured by PROTO.

SKU 3G-OTH-305211

Brand
PROTO
Item
Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 2 23/32 in Overall Lg
Category
Hex Bit Sockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

PROTO
Manufacturer Part Number
J49905/16
Type
Hex Tip, Fixed Insert
Overall Lg
2 23/32 in
Tip Size
5/16 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The PROTO Socket Bit (MPN J49905/16) is a hex bit socket with a 3/8 in drive size and a 5/16 in hex tip size, featuring a Fixed Insert design. It has an overall length of 2 23/32 in and is manufactured by PROTO.

Frequently Asked Questions

What is the PROTO J49905/16 hex bit socket used for?

The PROTO J49905/16 hex bit socket is used for driving hex-head fasteners in industrial maintenance, assembly, and repair applications. Its 3/8 in drive and 5/16 in hex tip with fixed insert design provides secure engagement for high-torque tasks across machining, material handling, and other plant operations.

What are the specifications of the PROTO J49905/16 socket bit?

The PROTO J49905/16 socket bit has a 3/8 in drive size, a 5/16 in hex tip size, and a fixed insert design. Overall length is 2 23/32 in. It is a hex bit socket manufactured by PROTO, part number J49905/16, suitable for precision fastening in industrial environments.

Where to buy the PROTO J49905/16 hex bit socket worldwide?

3G Electric supplies the PROTO J49905/16 hex bit socket worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this socket bit to your facility. Contact us for availability and lead time on this PROTO tool.

How to select the correct hex bit socket for industrial use?

To select the correct hex bit socket, match the drive size (e.g., 3/8 in) to your ratchet or driver, and the tip size (e.g., 5/16 in) to the fastener head. Consider overall length for access in tight spaces. The PROTO J49905/16 fixed insert design ensures reliable torque transfer for demanding applications.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/16 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/16 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 1 13/16 in Overall Lg, Fixed Insert (MPN J49905/16ST). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 1 13/16 in Overall Lg, Fixed Insert (MPN J49905/16ST). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-5M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-5M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/8). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/8). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 6 3/32 in Overall Lg, Fixed Insert (MPN J49905/16XL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/16 in Tip Size, 6 3/32 in Overall Lg, Fixed Insert (MPN J49905/16XL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49907/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49907/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.

More from PROTO

View all PROTO parts →
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 1/2 in Tip Size, 3 5/8 in Overall Lg, Fixed Insert (MPN J54411/2). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 1/2 in Tip Size, 3 5/8 in Overall Lg, Fixed Insert (MPN J54411/2). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 9/32 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4770R-9/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 9/32 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4770R-9/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/16 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4990R-3/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/16 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4990R-3/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 6 3/32 in Overall Lg, Fixed Insert (MPN J4990-10MXL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 6 3/32 in Overall Lg, Fixed Insert (MPN J4990-10MXL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 13 mm Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J5441R-13M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 13 mm Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J5441R-13M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4990R-7/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J4990R-7/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49905/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49905/32). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 5/16 in Tip Size, 3 1/4 in Overall Lg, Fixed Insert (MPN J54415/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 5/16 in Tip Size, 3 1/4 in Overall Lg, Fixed Insert (MPN J54415/16). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.