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PROTOTool Only Sets

PROTO Master Tool Set: 1,184 Total Pcs, Metric/SAE

The PROTO Master Tool Set (SKU 418RJ8, MPN JCS-1100MASBX1A) is a tool-only set containing 1,184 total pieces in Metric/SAE sizes with 1/2 in, 1/4 in, 3/4 in, and 3/8 in socket drive sizes. It includes (1)…

SKU 3G-OTH-267247

Brand
PROTO
Item
Master Tool Set: 1,184 Total Pcs, Metric/SAE
Category
Tool Only Sets
Available to Order
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Technical Specifications

PROTO
Manufacturer Part Number
JCS-1100MASBX1A
Type
Metric/SAE, 1/2 in/1/4 in/3/4 in/3/8 in Socket Drive Size
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Master Tool Set (SKU 418RJ8, MPN JCS-1100MASBX1A) is a tool-only set containing 1,184 total pieces in Metric/SAE sizes with 1/2 in, 1/4 in, 3/4 in, and 3/8 in socket drive sizes. It includes (1) Electrician's Plier, (2) Screw Starters, (21) Hex Keys, and (12) Flare Nut Wrenches.

Frequently Asked Questions

What is the PROTO Master Tool Set used for?

The PROTO Master Tool Set is used for industrial maintenance, repair, and assembly tasks across automotive, manufacturing, and heavy equipment sectors. Its 1,184-piece Metric/SAE combination covers fasteners from 1/4 in to 3/4 in drive sizes, making it suitable for both precision and heavy-duty applications.

What are the specifications of the PROTO Master Tool Set?

The PROTO Master Tool Set (MPN JCS-1100MASBX1A) includes 1,184 total pieces in Metric/SAE sizes with 1/2 in, 1/4 in, 3/4 in, and 3/8 in socket drive sizes. It contains (1) Electrician's Plier, (2) Screw Starters, (21) Hex Keys, and (12) Flare Nut Wrenches. This is a tool-only set.

Where to buy the PROTO Master Tool Set worldwide?

3G Electric supplies the PROTO Master Tool Set worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we source and deliver this set to any international destination.

How to select the right PROTO Master Tool Set for my shop?

Select the PROTO Master Tool Set if your work requires both Metric and SAE fasteners across multiple drive sizes (1/4 in to 3/4 in). The 1,184-piece count covers sockets, hex keys, and wrenches for automotive, industrial, and electrical tasks. Ensure your storage can accommodate a full set of this size.

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 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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PROTO Combination Wrench Set: Alloy Steel, Chrome, 14 Tools, 1/4 in to 1 in Range of Head Sizes, Std (MPN JSCRT-14S). Key specifications — attr309581: Chrome; attr309580: Alloy Steel; attr309571: No; attr309583: No; attr309587: Yes; attr324931: PROTO; attr309569: 1/4 in to 1 in; attr309572: Tool Roll.
PROTO Combination Wrench Set: Alloy Steel, Chrome, 13 Tools, 7 mm to 19 mm Range of Head Sizes (MPN JSCVMT-13S). Key specifications — attr309581: Chrome; attr309580: Alloy Steel; attr309571: Yes; attr309583: No; attr309587: Yes; attr324931: PROTO; attr309569: 7 mm to 19 mm; attr309572: Tool Roll.
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PROTO Combination Wrench Set: Alloy Steel, Chrome, 12 Tools, 8 mm to 19 mm Range of Head Sizes, Std (MPN JSCRMT-12S). Key specifications — attr309581: Chrome; attr309580: Alloy Steel; attr309571: No; attr309583: No; attr309587: Yes; attr324931: PROTO; attr309569: 8 mm to 19 mm; attr309572: Tool Roll.
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PROTO Combination Wrench Set: Alloy Steel, Black Chrome, 13 Tools, 6 mm to 19 mm Range of Head Sizes (MPN JSCVMS-13S). Key specifications — attr309581: Black Chrome; attr309580: Alloy Steel; attr309571: Yes; attr309583: No; attr309587: Yes; attr324931: PROTO; attr309569: 6 mm to 19 mm; attr309572: Tool Roll.
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PROTO Combination Wrench Set: Alloy Steel, Black Chrome, 13 Tools, 6 mm to 19 mm Range of Head Sizes (MPN JSCVMS-13S). Key specifications — attr309581: Black Chrome; attr309580: Alloy Steel; attr309571: Yes; attr309583: No; attr309587: Yes; attr324931: PROTO; attr309569: 6 mm to 19 mm; attr309572: Tool Roll.
PROTO Box End Wrench Set: Alloy Steel, Chrome, 7 Tools, 7 mm to 21 mm Range of Head Sizes, Reversing (MPN J1180MA). Key specifications — attr324927: PROTO; attr309452: Pouch; attr309451: Yes; attr309461: Chrome; attr309460: Alloy Steel; attr309463: No; attr309449: 7 mm to 21 mm.
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PROTO Box End Wrench Set: Alloy Steel, Chrome, 7 Tools, 7 mm to 21 mm Range of Head Sizes, Reversing (MPN J1180MA). Key specifications — attr324927: PROTO; attr309452: Pouch; attr309451: Yes; attr309461: Chrome; attr309460: Alloy Steel; attr309463: No; attr309449: 7 mm to 21 mm.
PROTO Combination Wrench Set: Alloy Steel, Satin, 15 Tools, 7 mm to 21 mm Range of Head Sizes (MPN J1200F-MASD). Key specifications — attr309520: Satin; attr309519: Alloy Steel; attr324929: PROTO; attr309512: Canvas Pouch; attr309522: No; attr309533: Yes.
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PROTO Master Set: 215 Total Pcs, Metric/SAE, 1/2 in/3/8 in Socket Drive Size (MPN JCS-MAS-3A). Key specifications — attr538253: PROTO; attr548975: (98) Impact Sockets; attr548983: (10) Ratcheting Double Box Wrenches.
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PROTO Master Set: 215 Total Pcs, Metric/SAE, 1/2 in/3/8 in Socket Drive Size (MPN JCS-MAS-3A). Key specifications — attr538253: PROTO; attr548975: (98) Impact Sockets; attr548983: (10) Ratcheting Double Box Wrenches.
PROTO Master Tool Set: 453 Total Pcs, SAE, 1/4 in/3/8 in/1/2 in/3/4 in Socket Drive Size (MPN J99720). Key specifications — attr538253: PROTO; attr548973: (12) Retaining-Ring Pliers; attr548974: (2) Screw Starters; attr548975: (31) Socket Bits; attr548983: (28) Open End Wrenches.
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PROTO Master Tool Set: 206 Total Pcs, Metric/SAE, 1/2 in/3/4 in Socket Drive Size (MPN J99945). Key specifications — attr538253: PROTO; attr548973: (1) Specialty Pliers; attr548974: (1) Screw Starter; attr548975: (28) Socket Bits; attr548983: (8) Specialty Wrenches.
PROTO Facility Maintenance Tool Set: 98 Total Pcs, Metric/SAE, 3/8 in Socket Drive Size (MPN J99480). Key specifications — attr538253: PROTO; attr548973: Lineman's Pliers; attr548974: (6) Phillips Screwdrivers; attr548975: (1) Drive Tool; attr548983: (15) Combination Wrenches.
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PROTO Master Set: 1,398 Total Pcs, Metric/SAE, 1/2 in/1/4 in/3/4 in/3/8 in Socket Drive Size (MPN JCS-1300MAS). Key specifications — attr538253: PROTO; attr548973: (2) Needle Nose Pliers; attr548974: (19) Nut Drivers; attr548975: (14) Torx Bit Sockets; attr548983: (7) Flex Combo Wrenches.
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