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PROTO 3/4" Drive Impact Socket, 21 mm, 6-Point, Metric, Black Oxide, J07521M - 3/4" Drive Impact Sockets
PROTO3/4" Drive Impact Sockets

PROTO 3/4" Drive Impact Socket, 21 mm, 6-Point, Metric, Black Oxide, J07521M

The PROTO Impact Socket (SKU 3G-OTH-293509) is a 3/4" drive impact socket with a 21 mm metric socket size and a 6-point standard configuration. It features a Black Oxide finish and is identified by manufacturer part…

SKU 3G-OTH-293509

Brand
PROTO
Item
3/4" Drive Impact Socket, 21 mm, 6-Point, Metric, Black Oxide, J07521M
Part Number
J07521M
Category
3/4" Drive Impact Sockets
Available to Order
Also known as:J07521MPROTO
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Technical Specifications

PROTO
Manufacturer Part Number
J07521M
Type
Metric, 6-Point, Std, Black Oxide
Socket Size
21 mm

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Impact Socket (SKU 3G-OTH-293509) is a 3/4" drive impact socket with a 21 mm metric socket size and a 6-point standard configuration. It features a Black Oxide finish and is identified by manufacturer part number J07521M.

Frequently Asked Questions

What is the PROTO Impact Socket J07521M used for?

The PROTO Impact Socket J07521M is used for tightening and loosening fasteners with impact tools in heavy-duty industrial applications such as automotive repair, construction, and manufacturing. Its 21 mm metric size and 6-point design provide a secure grip on hex bolts and nuts, reducing rounding.

What are the specifications of the PROTO Impact Socket J07521M?

The PROTO Impact Socket J07521M has a 3/4 inch drive size, a 21 mm metric socket size, and a 6-point standard configuration. It features a Black Oxide finish for corrosion resistance and is made by PROTO. The manufacturer part number is J07521M, and the SKU is 3G-OTH-293509.

Where to buy the PROTO Impact Socket J07521M worldwide?

You can source the PROTO Impact Socket J07521M through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply PROTO tools to procurement teams and engineers globally.

How to select the correct PROTO impact socket size?

To select the correct PROTO impact socket, match the drive size (e.g., 3/4 inch) to your impact wrench, and choose a socket size (e.g., 21 mm) that fits your fastener. Ensure the socket is impact-rated and has the appropriate point configuration (e.g., 6-point) for your application. PROTO offers various finishes like Black Oxide for durability.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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PROTO Products

3G Electric supplies PROTO 3/4" 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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