PROTO Master Set: 214 Total Pcs, Metric/SAE
The PROTO Master Set (SKU 409JW2, MPN JCS-MAS-7A) is a tool-only set comprising 214 total pieces in Metric and SAE sizes with 1/2 in and 3/8 in socket drive sizes. This set includes (6) assorted mini pliers, (17)…
SKU 3G-OTH-267192
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Product Description
The PROTO Master Set (SKU 409JW2, MPN JCS-MAS-7A) is a tool-only set comprising 214 total pieces in Metric and SAE sizes with 1/2 in and 3/8 in socket drive sizes. This set includes (6) assorted mini pliers, (17) T-handle hex keys, (2) drive tools, and (25) angle open-end wrenches.
Frequently Asked Questions
What is the PROTO Master Set JCS-MAS-7A used for?
The PROTO Master Set JCS-MAS-7A is used for professional mechanical assembly, maintenance, and repair tasks across automotive, industrial, and manufacturing sectors. It provides 214 pieces including Metric/SAE sockets, mini pliers, T-handle hex keys, drive tools, and angle open-end wrenches for versatile fastening and turning applications.
What are the specifications of the PROTO Master Set 409JW2?
The PROTO Master Set (SKU 409JW2, MPN JCS-MAS-7A) includes 214 total pieces in Metric and SAE sizes with 1/2 in and 3/8 in socket drive sizes. It contains (6) assorted mini pliers, (17) T-handle hex keys, (2) drive tools, and (25) angle open-end wrenches. This is a tool-only set from PROTO.
Where to buy the PROTO Master Set JCS-MAS-7A worldwide?
You can source the PROTO Master Set JCS-MAS-7A through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us 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 and fastener types you encounter. The JCS-MAS-7A offers both 1/2 in and 3/8 in drives with Metric and SAE sizes, plus mini pliers, hex keys, and angle wrenches. This combination covers most automotive and industrial repair needs.
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.












