PROTO Socket: Metric, 3/8 in Drive Size, 21 mm Socket Size, 6-Point, Std, Chrome
The PROTO Socket: Metric (MPN J5221MH) is a 3/8" Drive Hand Socket with a 21 mm, 6-point standard configuration. It is constructed from Chrome and is not tether capable.
SKU 3G-OTH-319166
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
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Product Description
The PROTO Socket: Metric (MPN J5221MH) is a 3/8" Drive Hand Socket with a 21 mm, 6-point standard configuration. It is constructed from Chrome and is not tether capable.
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 J5221MH socket used for?
The PROTO J5221MH is a 3/8" drive, 21 mm, 6-point standard socket used for tightening or loosening metric fasteners in automotive, industrial, and mechanical maintenance applications. Its chrome construction resists corrosion, making it suitable for general workshop use.
What are the specifications of the PROTO J5221MH socket?
The PROTO J5221MH is a 3/8" drive hand socket with a 21 mm, 6-point standard configuration. It is made of chrome, is not tether capable, and has the manufacturer part number J5221MH. The socket is designed for metric fasteners and is part of PROTO's hand socket line.
Where to buy the PROTO J5221MH socket worldwide?
You can source the PROTO J5221MH socket through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine PROTO tools to procurement teams globally.
How to select the correct PROTO socket for a job?
To select the correct PROTO socket, match the drive size (e.g., 3/8") to your ratchet, choose the socket size (e.g., 21 mm) to fit the fastener, and pick the point configuration (6-point for hex fasteners). For corrosion resistance, chrome sockets like the J5221MH are ideal for general use.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO 3/8" drive hand sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
