PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/8 in Tip Size, 2 3/4 in Overall Lg
The PROTO Socket Bit (MPN J4990R-1/8) is a 3/8 in drive size hex bit socket with a 1/8 in hex tip and 2 3/4 in overall length. It features a fixed insert design and is manufactured by PROTO.
SKU 3G-OTH-305492
Also listed as: J4990R18 · J4990R 1 8 · J4990R-1-8
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
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Product Description
The PROTO Socket Bit (MPN J4990R-1/8) is a 3/8 in drive size hex bit socket with a 1/8 in hex tip and 2 3/4 in overall length. It features a fixed insert design and is manufactured by PROTO.
Frequently Asked Questions
What is the PROTO J4990R-1/8 socket bit used for?
The PROTO J4990R-1/8 is a hex bit socket used to drive hex-head fasteners in industrial assembly, maintenance, and repair applications. Its 1/8 in hex tip and 3/8 in drive size make it suitable for precision torque tasks in automotive, manufacturing, and mechanical settings.
What are the specifications of the PROTO J4990R-1/8 socket bit?
The PROTO J4990R-1/8 is a fixed insert hex bit socket with a 3/8 in drive size, 1/8 in hex tip size, and 2 3/4 in overall length. It is manufactured by PROTO under MPN J4990R-1/8. The fixed insert design provides secure bit retention during use.
Where to buy the PROTO J4990R-1/8 socket bit worldwide?
3G Electric supplies the PROTO J4990R-1/8 socket bit worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this PROTO hex bit socket for your operations.
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., 1/8 in) to the fastener hex recess. Consider overall length for access clearance. The J4990R-1/8 fixed insert design suits repetitive fastening 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.
