PROTO Socket: Metric, 3/8 in Drive Size, 21 mm Socket Size, 12-Point, Deep, Chrome
The PROTO Socket: Metric is a 3/8" Drive Hand Socket, model J5021M, featuring a 21 mm socket size with a 12-point deep design. It is constructed from chrome, as specified by the manufacturer PROTO.
SKU 3G-OTH-319167
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: Metric is a 3/8" Drive Hand Socket, model J5021M, featuring a 21 mm socket size with a 12-point deep design. It is constructed from chrome, as specified by the manufacturer PROTO.
Frequently Asked Questions
What is the PROTO J5021M socket used for?
The PROTO J5021M is a 3/8 in drive, 21 mm, 12-point deep socket designed for turning metric fasteners in industrial maintenance, automotive repair, and assembly applications. Its deep profile reaches recessed nuts and bolts, while the chrome finish resists corrosion.
What are the specifications of the PROTO J5021M socket?
The PROTO J5021M is a 12-point, deep, chrome socket with a 3/8 in drive size and a 21 mm socket size. It is manufactured by PROTO under part number J5021M. The chrome construction provides durability and corrosion resistance for repeated use.
Where to buy the PROTO J5021M socket worldwide?
3G Electric supplies the PROTO J5021M socket to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time; we source genuine PROTO tools through our global supply network.
How to select the correct PROTO socket size?
To select the correct PROTO socket, match the drive size (3/8 in) to your ratchet or torque wrench, and the socket size (21 mm) to the fastener head. For recessed fasteners, choose a deep socket like the J5021M. Always verify the point configuration (12-point) matches the fastener.
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.
