PROTO Master Set: 246 Total Pcs, Metric/SAE
The PROTO Master Set (SKU 409JX0, MPN JCS-MAS-1A) is a tool-only set comprising 246 total pieces in Metric and SAE sizes with 1/4 in and 3/8 in socket drive sizes. The set includes (1) Needle Nose Plier, (5) Cabinet…
SKU 3G-OTH-267194
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Product Description
The PROTO Master Set (SKU 409JX0, MPN JCS-MAS-1A) is a tool-only set comprising 246 total pieces in Metric and SAE sizes with 1/4 in and 3/8 in socket drive sizes. The set includes (1) Needle Nose Plier, (5) Cabinet Screwdrivers, (38) Bit Sockets, and (3) Adjustable Wrenches.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the PROTO Master Set JCS-MAS-1A used for?
The PROTO Master Set is a 246-piece tool set for industrial maintenance, repair, and assembly. It includes Metric and SAE sockets with 1/4 in and 3/8 in drives, plus pliers, screwdrivers, and wrenches, making it suitable for automotive, manufacturing, and facility applications.
What are the specifications of the PROTO Master Set JCS-MAS-1A?
The PROTO Master Set (MPN JCS-MAS-1A) contains 246 total pieces in Metric and SAE sizes with 1/4 in and 3/8 in socket drive sizes. Included are (1) Needle Nose Plier, (5) Cabinet Screwdrivers, (38) Bit Sockets, and (3) Adjustable Wrenches. It is a tool-only set.
Where to buy the PROTO Master Set JCS-MAS-1A worldwide?
3G Electric supplies the PROTO Master Set JCS-MAS-1A to customers 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 246-piece tool set.
How to select the right PROTO Master Set for industrial use?
When selecting a PROTO Master Set, consider the socket drive sizes (1/4 in and 3/8 in) and whether you need Metric or SAE fasteners. The JCS-MAS-1A covers both systems with 246 pieces including pliers, screwdrivers, and wrenches. For heavy-duty applications, verify tool material and warranty.
Used in
Common applications for PROTOPROTO 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.











