PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/16 in Tip Size, 2 3/4 in Overall Lg
The PROTO J4990R-3/16 is a 3/8 in drive size hex bit socket with a 3/16 in hex tip and 2 3/4 in overall length. It features a fixed insert design and is manufactured by PROTO under part number J4990R-3/16.
SKU 3G-OTH-305471
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Product Description
The PROTO J4990R-3/16 is a 3/8 in drive size hex bit socket with a 3/16 in hex tip and 2 3/4 in overall length. It features a fixed insert design and is manufactured by PROTO under part number J4990R-3/16.
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 J4990R-3/16 hex bit socket used for?
The PROTO J4990R-3/16 is a 3/8 in drive hex bit socket with a 3/16 in hex tip, designed for driving hex fasteners in industrial maintenance, assembly, and repair applications across machining, material handling, and other plant operations.
What are the specifications of the PROTO J4990R-3/16?
The PROTO J4990R-3/16 has a 3/8 in drive size, 3/16 in hex tip size, 2 3/4 in overall length, and a fixed insert design. It is a hex bit socket manufactured by PROTO under part number J4990R-3/16.
Where to buy the PROTO J4990R-3/16 hex bit socket worldwide?
3G Electric supplies the PROTO J4990R-3/16 hex bit socket worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility, ensuring you receive genuine PROTO tools wherever you are located.
How to select the correct hex bit socket for a 3/8 in drive?
To select the correct hex bit socket, match the drive size (3/8 in) to your ratchet or driver, and choose a tip size (e.g., 3/16 in) that fits your fastener. The PROTO J4990R-3/16 offers a fixed insert design for secure engagement in repetitive tasks.
Used in
Common applications for PROTOPROTO 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.















