PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 1 25/32 in Overall Lg
The PROTO Socket Bit (SKU J4990-10MST, MPN J4990-10MST) is a hex bit socket with a 3/8 in drive size and a 10 mm hex tip size. It features a fixed insert design and has an overall length of 1 25/32 in. This…
SKU 3G-OTH-305252
Also listed as: J499010MST · J4990 10MST
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
Need installation or engineering help?
Ask a question
Product Description
The PROTO Socket Bit (SKU J4990-10MST, MPN J4990-10MST) is a hex bit socket with a 3/8 in drive size and a 10 mm hex tip size. It features a fixed insert design and has an overall length of 1 25/32 in. This PROTO-branded tool is intended for use with compatible drive tools.
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 J4990-10MST socket bit used for?
The PROTO J4990-10MST is a hex bit socket used to drive hex-head fasteners. It is designed for assembly, maintenance, and repair tasks across industrial sectors such as machining, material handling, and pneumatics. The 3/8 in drive size and 10 mm hex tip make it suitable for use with compatible ratchets and drivers.
What are the specifications of the PROTO J4990-10MST?
The PROTO J4990-10MST is a hex bit socket with a 3/8 in drive size, 10 mm hex tip size, and 1 25/32 in overall length. It features a fixed insert design. The manufacturer part number is J4990-10MST. This PROTO-branded tool is intended for use with compatible drive tools.
Where to buy the PROTO J4990-10MST worldwide?
3G Electric supplies the PROTO J4990-10MST hex bit socket to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this PROTO socket bit for your maintenance or assembly needs.
How to select the correct hex bit socket for a job?
To select the correct hex bit socket, match the drive size (e.g., 3/8 in) to your ratchet or driver, and the tip size (e.g., 10 mm) to the fastener. Consider overall length for access in tight spaces. The PROTO J4990-10MST fixed insert design provides secure engagement for repeated use.
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.
