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

MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 20 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, 20 mm Socket Size, 6-Point

The MILWAUKEE Standard Impact Socket is a 3/8" drive impact socket with a 20 mm metric socket size and a 6-point design. It features a Black Phosphate finish and is identified by manufacturer part number 49-66-6737.

SKU 3G-OTH-294920

Also listed as: 49666737 · 49 66 6737

Brand
MILWAUKEE
Item
Standard Impact Socket: 3/8 in Drive Size, Metric, 20 mm Socket Size, 6-Point
Category
3/8" Drive Impact Sockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MILWAUKEE
Manufacturer Part Number
49-66-6737
Type
Metric, 6-Point, Std
Socket Size
20 mm

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 Standard Impact Socket is a 3/8" drive impact socket with a 20 mm metric socket size and a 6-point design. It features a Black Phosphate finish and is identified by manufacturer part number 49-66-6737.

Frequently Asked Questions

What is the MILWAUKEE Standard Impact Socket 49-66-6737 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 configuration provides maximum torque transfer while reducing fastener rounding. The Black Phosphate finish resists corrosion in demanding shop environments.

What are the specifications of the MILWAUKEE 49-66-6737 impact socket?

The MILWAUKEE Standard Impact Socket has a 3/8" drive size, 20 mm metric socket size, and a 6-point standard profile. It features a Black Phosphate finish and is identified by manufacturer part number 49-66-6737. This socket is designed for use with impact wrenches and drivers.

Where to buy MILWAUKEE impact sockets in worldwide?

3G Electric supplies the MILWAUKEE Standard Impact Socket 49-66-6737 to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this socket.

How to select the right MILWAUKEE impact socket size?

Select a socket that matches your fastener's head size and drive tool. For the MILWAUKEE 49-66-6737, use a 3/8" drive impact wrench with a 20 mm metric fastener. Always choose a 6-point socket for hex fasteners to prevent rounding. Ensure the socket is impact-rated for power tool use.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 12 mm Socket Size, 6-Point, Std (MPN 49-66-6136)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 12 mm Socket Size, 6-Point, Std (MPN 49-66-6136)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 13 mm Socket Size, 6-Point, Std (MPN 49-66-6137)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 13 mm Socket Size, 6-Point, Std (MPN 49-66-6137)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 6 mm Socket Size, 6-Point, Std (MPN 49-66-6130)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 6 mm Socket Size, 6-Point, Std (MPN 49-66-6130)
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, Metric, 20 mm Socket Size, 6-Point, Std (MPN 49-66-6358)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/4 in Drive Size, Metric, 20 mm Socket Size, 6-Point, Std (MPN 49-66-6358)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 7 mm Socket Size, 6-Point, Std (MPN 49-66-6131)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 7 mm Socket Size, 6-Point, Std (MPN 49-66-6131)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 18 mm Socket Size, 6-Point, Std (MPN 49-66-6142)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 18 mm Socket Size, 6-Point, Std (MPN 49-66-6142)

More from MILWAUKEE

View all MILWAUKEE parts
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, SAE, 11/32 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6118)
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, SAE, 11/32 in Socket Size, 6-Point, Deep, Friction (MPN 49-66-6118)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, SAE, 3/4 in Socket Size, 6-Point, Std, Friction (MPN 49-66-6110)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, SAE, 3/4 in Socket Size, 6-Point, Std, Friction (MPN 49-66-6110)
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 6 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6148)
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 6 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6148)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 16 mm Socket Size, 6-Point, Std (MPN 49-66-6140)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 16 mm Socket Size, 6-Point, Std (MPN 49-66-6140)
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 9 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6151)
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 9 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6151)
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 13 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6155)
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 13 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6155)
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 18 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6160)
MILWAUKEE
MILWAUKEE Deep Impact Socket: 3/8 in Drive Size, Metric, 18 mm Socket Size, 6-Point, Deep, Friction (MPN 49-66-6160)
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 23 mm Socket Size, 6-Point, Std (MPN 49-66-6146)
MILWAUKEE
MILWAUKEE Standard Impact Socket: 3/8 in Drive Size, Metric, 23 mm Socket Size, 6-Point, Std (MPN 49-66-6146)