PROTO J7421M 1/2" Drive Impact Socket, 21 mm, 6-Point, Metric
The PROTO J7421M is a 1/2" Drive Impact Socket with a 21 mm metric socket size and a 6-point standard configuration. It features a Black Oxide finish and has an overall length of 1 5/8 inches. This industrial socket…
SKU 3G-OTH-298554
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Product Description
The PROTO J7421M is a 1/2" Drive Impact Socket with a 21 mm metric socket size and a 6-point standard configuration. It features a Black Oxide finish and has an overall length of 1 5/8 inches. This industrial socket is designed for use with impact tools.
Frequently Asked Questions
What is the PROTO J7421M impact socket used for?
The PROTO J7421M is a 1/2" drive impact socket designed for heavy-duty fastening with impact tools. Its 21 mm metric, 6-point configuration suits industrial maintenance, automotive repair, and assembly applications where high torque and durability are required.
What are the specifications of the PROTO J7421M impact socket?
The PROTO J7421M has a 1/2" drive size, 21 mm metric socket size, 6-point standard profile, and 1 5/8 in overall length. It features a Black Oxide finish for corrosion resistance and is designed for use with impact tools.
Where to buy PROTO J7421M impact socket worldwide?
3G Electric supplies the PROTO J7421M impact socket worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order this genuine PROTO part for your operations.
How to select the right impact socket size for a fastener?
Match the socket size exactly to the fastener head dimension—here 21 mm for a 21 mm bolt. Ensure the drive size (1/2") fits your impact wrench. A 6-point design provides better grip and reduces rounding on hex fasteners compared to 12-point.
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Common applications for PROTOPROTO Products
3G Electric supplies PROTO 1/2" drive impact sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
