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MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 21 mm Socket Size, 6-Point - 3/8" Drive Impact Sockets
MILWAUKEE3/8" Drive Impact Sockets

MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 21 mm Socket Size, 6-Point

The MILWAUKEE Standard Impact Socket is a 3/8" drive impact socket with a 21 mm metric, 6-point design. It features a black phosphate finish and is identified by manufacturer part number 49-66-6144.

SKU 3G-OTH-294973

Brand
MILWAUKEE
Item
Standard Impact Socket: 3/8 in Drive Size, Metric, 21 mm Socket Size, 6-Point
Category
3/8" Drive Impact Sockets
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Technical Specifications

MILWAUKEE
Manufacturer Part Number
49-66-6144
Type
Metric, 6-Point, Std
Socket Size
21 mm
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MILWAUKEE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MILWAUKEE Standard Impact Socket is a 3/8" drive impact socket with a 21 mm metric, 6-point design. It features a black phosphate finish and is identified by manufacturer part number 49-66-6144.

Frequently Asked Questions

What is the MILWAUKEE Standard Impact Socket 49-66-6144 used for?

This 3/8" drive impact socket is designed for fastening and loosening metric hex fasteners in automotive, construction, and industrial maintenance. Its 6-point, 21 mm configuration provides secure engagement on bolts and nuts, reducing rounding. The black phosphate finish offers corrosion resistance for demanding environments.

What are the specifications of the MILWAUKEE 49-66-6144 impact socket?

The MILWAUKEE Standard Impact Socket (MPN 49-66-6144) has a 3/8" drive size, 21 mm metric socket size, and a 6-point, standard profile. It features a black phosphate finish for durability. This socket is designed for use with impact tools and is part of MILWAUKEE's standard impact socket line.

Where to buy the MILWAUKEE 49-66-6144 impact socket worldwide?

3G Electric supplies the MILWAUKEE 49-66-6144 impact socket to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and a quote for your region.

How to select the correct MILWAUKEE impact socket size?

Select the socket size that matches your fastener's hex dimension—here, 21 mm for metric bolts. Ensure the drive size (3/8") fits your impact wrench. A 6-point design provides better torque transfer and reduces fastener rounding compared to 12-point sockets. Always use impact-rated sockets with power tools for safety.

Used in

Common applications for MILWAUKEE
Electrical panel assembly — Milwaukee U-style crimping dies (49-16-U250) for 250 kcmil copper lugs
Automotive repair — Milwaukee 1/2 in drive impact sockets (49-66-6242) for removing lug nuts
Construction framing — Milwaukee hex bit sockets (45-34-1079) for driving hex-head screws
Industrial maintenance — Milwaukee cordless crimping tool kit (2678-22BG) for cable terminations
Tool repair — Milwaukee cord set (22-64-0121) for replacing damaged power cords on equipment

MILWAUKEE Products

3G Electric supplies MILWAUKEE 3/8" 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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MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 12 mm Socket Size, 6-Point, Std (MPN 49-66-6136). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 12 mm.
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MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 18 mm Socket Size, 6-Point, Std (MPN 49-66-6142). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 18 mm.
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