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PROTO J49901/4ST Hex Bit Socket - Hex Bit Sockets
PROTOHex Bit Sockets

PROTO J49901/4ST Hex Bit Socket

The PROTO Socket Bit (SKU J49901/4ST, MPN J49901/4ST) is a hex bit socket with a 3/8 in drive size and a 1/4 in hex tip size. It features a fixed insert design and has an overall length of 1 13/16 in. This…

SKU 3G-OTH-305206

Also listed as: J499014ST · J49901 4ST · J49901-4ST

Brand
PROTO
Item
J49901/4ST Hex Bit Socket
Part Number
J49901/4ST
Category
Hex Bit Sockets
Available to Order
Also known as:J49901/4STPROTO
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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
J49901/4ST
Type
Hex Tip, Fixed Insert
Overall Lg
1 13/16 in
Tip Size
1/4 in

Technical Documents

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

Product Description

The PROTO Socket Bit (SKU J49901/4ST, MPN J49901/4ST) is a hex bit socket with a 3/8 in drive size and a 1/4 in hex tip size. It features a fixed insert design and has an overall length of 1 13/16 in. This PROTO-branded tool is suitable for industrial applications requiring a fixed hex bit socket.

Frequently Asked Questions

What is the PROTO J49901/4ST socket bit used for?

The PROTO J49901/4ST hex bit socket is used for driving hex fasteners in industrial assembly, maintenance, and repair tasks. Its 3/8 in drive and 1/4 in hex tip suit applications across machining, material handling, and pneumatics where a fixed insert design provides reliable torque transfer.

What are the specifications of the PROTO J49901/4ST hex bit socket?

The PROTO J49901/4ST hex bit socket has a 3/8 in drive size, a 1/4 in hex tip size, and an overall length of 1 13/16 in. It features a fixed insert design and is branded PROTO. The manufacturer part number is J49901/4ST.

Where to buy the PROTO J49901/4ST hex bit socket worldwide?

3G Electric supplies the PROTO J49901/4ST 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 lead time on this PROTO-branded tool.

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

Select a hex bit socket by matching the drive size to your ratchet or driver, the tip size to the fastener, and the overall length to access depth. For the PROTO J49901/4ST, use a 3/8 in drive with 1/4 in hex fasteners. Fixed insert designs suit high-torque applications without bit slippage.

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
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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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