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PROTO JCS-MAS-5A Master Set, 272 Pieces, Metric/SAE, 1/2 in/1/4 in/3/8 in Drive - Tool Only Sets
PROTOTool Only Sets

PROTO JCS-MAS-5A Master Set, 272 Pieces, Metric/SAE, 1/2 in/1/4 in/3/8 in Drive

The PROTO Master Set: 272 Total Pcs (SKU JCS-MAS-5A, MPN JCS-MAS-5A) is a comprehensive tool-only set from PROTO. It includes (3) Locking Pliers, (1) Ratcheting Screwdriver, (8) Drive Tools, and (20) Double Open-End…

SKU 3G-OTH-267200

Also listed as: JCSMAS5A · JCS MAS 5A

Brand
PROTO
Item
JCS-MAS-5A Master Set, 272 Pieces, Metric/SAE, 1/2 in/1/4 in/3/8 in Drive
Part Number
JCS-MAS-5A
Category
Tool Only Sets
Available to Order
Also known as:JCS-MAS-5APROTO
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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
JCS-MAS-5A
Type
Metric/SAE, 1/2 in/1/4 in/3/8 in Socket Drive Size

Technical Documents

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

Product Description

The PROTO Master Set: 272 Total Pcs (SKU JCS-MAS-5A, MPN JCS-MAS-5A) is a comprehensive tool-only set from PROTO. It includes (3) Locking Pliers, (1) Ratcheting Screwdriver, (8) Drive Tools, and (20) Double Open-End Wrenches, with Metric/SAE sizing and 1/2 in, 1/4 in, and 3/8 in socket drive sizes.

Frequently Asked Questions

What is the PROTO Master Set JCS-MAS-5A used for?

The PROTO Master Set JCS-MAS-5A is used for professional mechanical assembly, maintenance, and repair across automotive, industrial, and manufacturing sectors. It provides 272 pieces including locking pliers, a ratcheting screwdriver, drive tools, and double open-end wrenches in Metric/SAE sizes with 1/2 in, 1/4 in, and 3/8 in socket drives.

What are the specifications of the PROTO Master Set JCS-MAS-5A?

The PROTO Master Set JCS-MAS-5A includes 272 total pieces: (3) locking pliers, (1) ratcheting screwdriver, (8) drive tools, and (20) double open-end wrenches. It features Metric/SAE sizing with 1/2 in, 1/4 in, and 3/8 in socket drive sizes. The set is manufactured by PROTO under MPN JCS-MAS-5A.

Where to buy the PROTO Master Set JCS-MAS-5A worldwide?

You can source the PROTO Master Set JCS-MAS-5A through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for availability and lead time on this PROTO tool set.

How to select the right PROTO Master Set for automotive work?

To select the right PROTO Master Set, consider the socket drive sizes needed: this set offers 1/2 in, 1/4 in, and 3/8 in drives with Metric/SAE coverage. For automotive work, ensure the set includes locking pliers and double open-end wrenches as provided in the JCS-MAS-5A. PROTO tools are designed for professional durability.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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PROTO Products

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

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