PROTO J4990R-4M Hex Bit Socket, 4 mm Tip, 2 3/4 in Overall Length
The PROTO Socket Bit (SKU J4990R-4M, MPN J4990R-4M) is a hex bit socket with a 3/8 in drive size and a 4 mm hex tip size. It features a fixed insert design and has an overall length of 2 3/4 in. This PROTO-branded…
SKU 3G-OTH-305532
Also listed as: J4990R4M · J4990R 4M
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Product Description
The PROTO Socket Bit (SKU J4990R-4M, MPN J4990R-4M) is a hex bit socket with a 3/8 in drive size and a 4 mm hex tip size. It features a fixed insert design and has an overall length of 2 3/4 in. This PROTO-branded tool is a hex bit socket for industrial applications.
Frequently Asked Questions
What is the PROTO J4990R-4M hex bit socket used for?
The PROTO J4990R-4M hex bit socket is used for driving hex fasteners in industrial assembly, maintenance, and repair tasks. Its 4 mm hex tip and 3/8 in drive size make it suitable for precision work on machinery, automotive components, and equipment where a fixed insert design provides secure engagement.
What are the specifications of the PROTO J4990R-4M socket bit?
The PROTO J4990R-4M socket bit has a 3/8 in drive size, a 4 mm hex tip size, and an overall length of 2 3/4 in. It features a fixed insert design and is a hex bit socket. The manufacturer part number is J4990R-4M, and it is a PROTO-branded tool for industrial applications.
Where to buy the PROTO J4990R-4M hex bit socket worldwide?
You can source the PROTO J4990R-4M hex bit socket 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; we supply PROTO tools to industrial buyers internationally.
How to select the correct PROTO hex bit socket for my application?
To select the correct PROTO hex bit socket, match the drive size (e.g., 3/8 in) to your ratchet or driver, and the tip size (e.g., 4 mm) to the fastener. Consider the overall length (e.g., 2 3/4 in) for access. The fixed insert design of the J4990R-4M provides a secure fit for hex fasteners in industrial settings.
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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.
