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

PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/8 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, 1/8 in Tip Size, 2 23/32 in Overall Lg

The PROTO Socket Bit (MPN J49901/8) is a 3/8 in drive size hex bit socket with a 1/8 in hex tip and 2 23/32 in overall length. It features a fixed insert design and is manufactured by PROTO.

SKU 3G-OTH-305494

Also listed as: J499018 · J49901 8 · J49901-8

Brand
PROTO
Item
Socket Bit: 3/8 in Drive Size, Hex Tip, 1/8 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 engineerMessage via Telegram
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

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
J49901/8
Type
Hex Tip, Fixed Insert
Overall Lg
2 23/32 in
Tip Size
1/8 in

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 J49901/8) is a 3/8 in drive size hex bit socket with a 1/8 in hex tip and 2 23/32 in overall length. It features a fixed insert design and is manufactured by PROTO.

Frequently Asked Questions

What is the PROTO Socket Bit J49901/8 used for?

The PROTO Socket Bit J49901/8 is used for driving hex-head fasteners in industrial assembly, maintenance, and repair tasks. Its 3/8 in drive and 1/8 in hex tip suit precision work on machinery, automotive, and equipment where a fixed insert design provides secure engagement.

What are the specifications of the PROTO Socket Bit J49901/8?

The PROTO Socket Bit J49901/8 has a 3/8 in drive size, a 1/8 in hex tip size, and a 2 23/32 in overall length. It features a fixed insert design and is manufactured by PROTO under MPN J49901/8. The hex tip ensures reliable torque transfer for hex fasteners.

Where to buy the PROTO Socket Bit J49901/8 worldwide?

You can source the PROTO Socket Bit J49901/8 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this PROTO hex bit socket.

How to select the correct PROTO socket bit for your application?

To select the correct PROTO socket bit, match the drive size (e.g., 3/8 in) to your ratchet or driver, and the tip size (e.g., 1/8 in hex) to the fastener. Consider overall length for access. The fixed insert design of the J49901/8 suits applications requiring a non-removable bit.

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
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)
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)
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)
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)
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-8M)
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-8M)
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 6 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-6M)
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 6 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-6M)
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/4 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/4)
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/4 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/4)
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M)
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M)

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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)