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PROTO Socket: Metric, 3/8 in Drive Size, 20 mm Socket Size, 12-Point, Deep, Chrome - Tether-Ready Hand Sockets
PROTOTether-Ready Hand Sockets

PROTO Socket: Metric, 3/8 in Drive Size, 20 mm Socket Size, 12-Point, Deep, Chrome

The PROTO Socket: Metric (SKU 3G-OTH-328612, MPN J5220M-TT) is a tether-ready hand socket with a 3/8 in drive size and 20 mm socket size. It features a 12-point, deep design in chrome finish, manufactured by PROTO.

SKU 3G-OTH-328612

Also listed as: J5220MTT · J5220M TT

Brand
PROTO
Item
Socket: Metric, 3/8 in Drive Size, 20 mm Socket Size, 12-Point, Deep, Chrome
Category
Tether-Ready Hand Sockets
Available to Order
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Worldwide Shipping
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Technical specs
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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.

Technical Specifications

PROTO
Manufacturer Part Number
J5220M-TT
Type
12-Point, Deep, Chrome, Tether Ready
Socket Size
20 mm
Drive Size
3/8 in

Technical Documents

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Socket: Metric (SKU 3G-OTH-328612, MPN J5220M-TT) is a tether-ready hand socket with a 3/8 in drive size and 20 mm socket size. It features a 12-point, deep design in chrome finish, manufactured by PROTO.

Frequently Asked Questions

What is the PROTO J5220M-TT socket used for?

The PROTO J5220M-TT is a 20 mm, 12-point, deep chrome socket with a 3/8 in drive, designed for fastening and loosening metric fasteners in industrial maintenance, automotive repair, and assembly applications where tethering is required to prevent tool drops.

What are the specifications of the PROTO J5220M-TT socket?

The PROTO J5220M-TT is a 12-point, deep, chrome socket with a 3/8 in drive size and 20 mm socket size. It is tether-ready, allowing attachment of a lanyard for tool security. The chrome finish provides corrosion resistance. PROTO manufactures this part number J5220M-TT.

Where to buy the PROTO J5220M-TT socket worldwide?

3G Electric supplies the PROTO J5220M-TT socket worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this tether-ready, 3/8 in drive, 20 mm deep socket.

How to select the correct PROTO socket for a job?

To select the correct PROTO socket, match the drive size (e.g., 3/8 in) to your ratchet or torque wrench, and the socket size (e.g., 20 mm) to the fastener head. Choose 12-point for hex fasteners and deep sockets for recessed bolts. Tether-ready options like the J5220M-TT add safety in elevated work.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO tether-ready hand sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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