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PROTO Impact Socket: 1/2 in Drive Size, Metric, 21 mm Socket Size, 6-Point, Std - 1/2" Drive Impact Sockets
PROTO1/2" Drive Impact Sockets

PROTO Impact Socket: 1/2 in Drive Size, Metric, 21 mm Socket Size, 6-Point, Std

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

Brand
PROTO
Item
Impact Socket: 1/2 in Drive Size, Metric, 21 mm Socket Size, 6-Point, Std
Category
1/2" Drive Impact Sockets
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Technical Specifications

PROTO
Manufacturer Part Number
J7421M
Type
Metric, 6-Point, Std
Overall Lg
1 5/8 in
Socket Size
21 mm
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

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.

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 1/2" drive impact sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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PROTO Impact Socket: 1/2 in Drive Size, Metric, 19 mm Socket Size, 6-Point, Std, 1 1/2 in Overall Lg (MPN J7419M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 19 mm.
PROTO Impact Socket: 1/2 in Drive Size, Metric, 13 mm Socket Size, 6-Point, Std, 1 1/2 in Overall Lg (MPN J7413M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 13 mm.
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PROTO Impact Socket: 1/2 in Drive Size, Metric, 33 mm Socket Size, 6-Point, Std, 2 in Overall Lg (MPN J7433M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 33 mm.
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PROTO Impact Socket: 1/2 in Drive Size, Metric, 15 mm Socket Size, 6-Point, Deep, Black Oxide (MPN J7315M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 15 mm.
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PROTO Impact Socket: 1/2 in Drive Size, Metric, 15 mm Socket Size, 6-Point, Deep, Black Oxide (MPN J7315M). Key specifications — attr1215501: PROTO; attr1215515: Black Oxide; attr1215518: 15 mm.