Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 25 mm Socket Size, 6-Point - 3/4" Drive Impact Sockets
MILWAUKEE3/4" Drive Impact Sockets

MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 25 mm Socket Size, 6-Point

The MILWAUKEE Deep Impact Socket (MPN 49-66-6400) is a 3/4" drive, metric, 25 mm socket size, 6-point, deep impact socket with a Black Phosphate finish. It features a friction retention design for secure attachment…

SKU 3G-OTH-293607

Brand
MILWAUKEE
Item
Deep Impact Socket: 3/4 in Drive Size, Metric, 25 mm Socket Size, 6-Point
Category
3/4" Drive Impact Sockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MILWAUKEE
Manufacturer Part Number
49-66-6400
Type
Metric, 6-Point, Deep, Friction
Socket Size
25 mm
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The MILWAUKEE Deep Impact Socket (MPN 49-66-6400) is a 3/4" drive, metric, 25 mm socket size, 6-point, deep impact socket with a Black Phosphate finish. It features a friction retention design for secure attachment to impact tools.

Frequently Asked Questions

What is the MILWAUKEE Deep Impact Socket 49-66-6400 used for?

The MILWAUKEE Deep Impact Socket 49-66-6400 is used for fastening and loosening metric 25 mm hex fasteners with high-torque impact tools. Its deep, 6-point design and Black Phosphate finish suit heavy-duty automotive, construction, and industrial maintenance applications where secure socket retention is critical.

What are the specifications of the MILWAUKEE 49-66-6400 impact socket?

The MILWAUKEE 49-66-6400 is a 3/4" drive, metric, 25 mm socket size, 6-point, deep impact socket with a Black Phosphate finish. It uses a friction retention design for secure attachment. The manufacturer part number is 49-66-6400, and it is made by MILWAUKEE.

Where to buy MILWAUKEE 49-66-6400 impact socket worldwide?

3G Electric supplies the MILWAUKEE 49-66-6400 Deep Impact Socket to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this metric 25 mm socket.

How to select the correct MILWAUKEE impact socket size?

To select the correct MILWAUKEE impact socket, match the drive size (3/4") to your impact wrench, and choose the socket size (25 mm) to the fastener hex. For deep fasteners or recessed nuts, use a deep socket. The 6-point design reduces rounding. Always verify the fastener is metric.

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 3/4" drive impact sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 23 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6398). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 23 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 23 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6398). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 23 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 26 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6401). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 26 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 26 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6401). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 26 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 27 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6402). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 27 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 27 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6402). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 27 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 28 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6403). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 28 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 28 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6403). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 28 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 32 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6407). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 32 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 32 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6407). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 32 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 22 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6397). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 22 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 22 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6397). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 22 mm.

More from MILWAUKEE

View all MILWAUKEE parts
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 31 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6406). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 31 mm.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, Metric, 31 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6406). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 31 mm.
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, SAE, 3/4 in Socket Size, 6-Point, Std, Friction (MPN 49-66-6303). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 3/4 in.
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, SAE, 3/4 in Socket Size, 6-Point, Std, Friction (MPN 49-66-6303). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 3/4 in.
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, Metric, 50 mm Socket Size, 6-Point, Std (MPN 49-66-6388). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 50 mm.
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, Metric, 50 mm Socket Size, 6-Point, Std (MPN 49-66-6388). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 50 mm.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 5/8 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6333). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 5/8 in.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 5/8 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6333). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 5/8 in.
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, SAE, 11/16 in Socket Size, 6-Point, Std (MPN 49-66-6302). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 11/16 in.
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, SAE, 11/16 in Socket Size, 6-Point, Std (MPN 49-66-6302). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 11/16 in.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 13/16 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6336). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 13/16 in.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 13/16 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6336). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 13/16 in.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 1 1/8 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6341). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 1-1/8 in.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 1 1/8 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6341). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 1-1/8 in.
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 1 5/16 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6344). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 1-5/16 in.
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/4 in Drive Size, SAE, 1 5/16 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6344). Key specifications — attr1215501: MILWAUKEE; attr1215515: Black Phosphate; attr1215518: 1-5/16 in.