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PROTO Socket: Metric, 1/2 in Drive Size, 20 mm Socket Size, 12-Point, Std, Chrome - Tether-Ready Hand Sockets
PROTOTether-Ready Hand Sockets

PROTO Socket: Metric, 1/2 in Drive Size, 20 mm Socket Size, 12-Point, Std, Chrome

The PROTO Socket: Metric (SKU 3G-OTH-328659, MPN J5420M-TT) is a tether-ready hand socket with a 1/2 in drive size, 20 mm socket size, 12-point standard configuration, and a chrome finish. Manufactured by PROTO, this…

SKU 3G-OTH-328659

Also listed as: J5420MTT · J5420M TT

Brand
PROTO
Item
Socket: Metric, 1/2 in Drive Size, 20 mm Socket Size, 12-Point, Std, Chrome
Category
Tether-Ready Hand Sockets
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J5420M-TT
Type
12-Point, Std, Chrome, Tether Ready
Socket Size
20 mm
Drive Size
1/2 in

Technical Documents

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

Product Description

The PROTO Socket: Metric (SKU 3G-OTH-328659, MPN J5420M-TT) is a tether-ready hand socket with a 1/2 in drive size, 20 mm socket size, 12-point standard configuration, and a chrome finish. Manufactured by PROTO, this socket is designed for metric fasteners and includes tether-ready capability for enhanced tool security.

Frequently Asked Questions

What is the PROTO J5420M-TT socket used for?

The PROTO J5420M-TT is a tether-ready hand socket used for tightening or loosening 20 mm metric fasteners with a 1/2 in drive ratchet or torque wrench. It is commonly applied in automotive, industrial maintenance, and assembly environments where tool security is required to prevent drops or loss.

What are the specifications of the PROTO J5420M-TT socket?

The PROTO J5420M-TT socket has a 1/2 in drive size, a 20 mm socket size, and a 12-point standard configuration. It features a chrome finish and is tether-ready for enhanced tool security. The manufacturer part number is J5420M-TT, and it is designed for metric fasteners.

Where to buy the PROTO J5420M-TT socket worldwide?

You can source the PROTO J5420M-TT socket 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 genuine PROTO tools to customers across multiple industries.

How to select the correct PROTO socket for metric fasteners?

To select the correct PROTO socket, match the socket size exactly to the fastener head dimension—for metric fasteners, use a 20 mm socket like the J5420M-TT. Ensure the drive size (1/2 in) fits your ratchet or torque wrench. Choose a 12-point configuration for higher torque applications and a tether-ready design for safety in elevated or confined workspaces.

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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