PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5 mm Tip Size, 2 23/32 in Overall Lg
The PROTO Socket Bit (SKU 3G-OTH-305445, MPN J4990-5M-TT) is a 3/8 in drive size hex bit socket with a 5 mm hex tip and 2 23/32 in overall length. It features a fixed insert design and is manufactured by PROTO.
SKU 3G-OTH-305445
Also listed as: J49905MTT · J4990 5M TT
Local availability & support
- 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.
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Product Description
The PROTO Socket Bit (SKU 3G-OTH-305445, MPN J4990-5M-TT) is a 3/8 in drive size hex bit socket with a 5 mm 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 J4990-5M-TT socket bit used for?
The PROTO J4990-5M-TT socket bit is used for driving hex fasteners in industrial assembly, maintenance, and repair tasks. Its 5 mm hex tip and 3/8 in drive size make it suitable for automotive, manufacturing, and mechanical applications requiring precise torque transfer.
What are the specifications of the PROTO J4990-5M-TT socket bit?
The PROTO J4990-5M-TT is a hex bit socket with a 3/8 in drive size, 5 mm hex tip, and 2 23/32 in overall length. It features a fixed insert design and is manufactured by PROTO. The part number is J4990-5M-TT.
Where to buy the PROTO J4990-5M-TT socket bit worldwide?
You can source the PROTO J4990-5M-TT socket bit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the part reaches your facility reliably.
How to select the correct PROTO socket bit for a job?
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., 5 mm) to the fastener. Consider overall length for access. The J4990-5M-TT is a fixed insert design, ideal for repetitive hex 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.
