PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/8 in Tip Size, 1 13/16 in Overall Lg
The PROTO Socket Bit (MPN J49903/8ST) is a hex bit socket with a 3/8 in drive size and a 3/8 in hex tip size, featuring a fixed insert design. It has an overall length of 1 13/16 in and is manufactured by PROTO.
SKU 3G-OTH-305212
Also listed as: J499038ST · J49903 8ST · J49903-8ST
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 (MPN J49903/8ST) is a hex bit socket with a 3/8 in drive size and a 3/8 in hex tip size, featuring a fixed insert design. It has an overall length of 1 13/16 in and is manufactured by PROTO.
Frequently Asked Questions
What is the PROTO J49903/8ST socket bit used for?
The PROTO J49903/8ST socket bit is used for driving hex fasteners in industrial assembly, maintenance, and repair applications. Its 3/8 in drive size and fixed insert design make it suitable for use with ratchets and impact tools in automotive, manufacturing, and mechanical settings.
What are the specifications of the PROTO J49903/8ST hex bit socket?
The PROTO J49903/8ST hex bit socket has a 3/8 in drive size, a 3/8 in hex tip size, and an overall length of 1 13/16 in. It features a fixed insert design and is manufactured by PROTO under MPN J49903/8ST. The tip type is hex with a fixed insert for secure engagement.
Where to buy the PROTO J49903/8ST socket bit worldwide?
You can source the PROTO J49903/8ST socket bit 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 to your ratchet or driver (e.g., 3/8 in), and ensure the tip size matches the fastener hex (e.g., 3/8 in). Consider overall length for access; the J49903/8ST has a 1 13/16 in length. For fixed insert sockets, verify the bit is securely retained.
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.
