BAHCO 4040M-10-11 knee spanner with Dynamic-Drive profile, chrome-plated, length 199 mm, 10 mm x 11 mm

Name: BAHCO 4040M-10-11 knee spanner with Dynamic-Drive profile, chrome-plated, length 199 mm, 10 mm x 11 mm
Brand: BAHCO
SKU: 41850586
Price: 31.8 EUR
Availability: PreOrder

Supplier number: BAHCO 4040M-10-11 | EAN 7314151078287

Recommended Retail Price €52.53

31.80 tax incl.

€26.28 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

Ordered before 20:00 - delivered as of 09/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Lifetime warranty on Bahco? Or limited in time? Read more about it here.
Delivered from Belgium

✆ Talk to a specialist

Bahco flex wrench accessibility

Practical benefits

Smooth access around obstacles: With 180° swivelling heads on both ends, you reach awkward fasteners in tight spaces effortlessly.
Reduced wear on fasteners: The Dynamic-Drive profile distributes torque evenly across flats, so you protect nuts and bolts from rounding.
Durable matte chrome finish: Built from high-performance alloy steel, the micro-matte chrome coating gives you reliable resistance against corrosion.

In a nutshell

The right choise for

With the Bahco 4040m-10-11 double flex-head wrench, you easily reach awkward nuts and bolts in confined spaces. Featuring 180° swivelling heads in sizes 10 mm and 11 mm, it gives you optimal flexibility when working in tight engine bays or compact machinery. The Dynamic-Drive profile grips fasteners on the flats, effectively preventing wear and rounding off bolt heads. Built with a total length of 199 mm from high-performance alloy steel and finished with a micro-matte chrome coating, this wrench provides reliable protection against corrosion and wear, giving you total control and efficiency on every job.

Product information FAQ

€31.80

tax incl.

Key features according to our expert

Width across flats 1: 10 mm
Width across flats 2: 11 mm
Key type: Socket wrench
Length: 220 mm

Product description:

Double ended flex-head wrenches with double hexagon sockets in metric sizes
Material: High performance alloy steel
Chrome plated Micro Matt finishing provides high quality surface
12 points Dynamic-Drive Profile provides longer life for screws and nuts
Both heads 180º swivelling. New design of the sockets for better accessibility
Retail packed on a plastic card

All Features

Width across flats 1: 10 mm
Width across flats 2: 11 mm
Key type: Socket wrench
Length: 220 mm
Width head 2 mm (d2): 15,3 mm
Width head 1 mm (d1): 14,1 mm
Length mm (l): 199 mm
Weight g: 87 g
Size mm: 10x11 mm

Brand BAHCO
41850586
EAN 7314151078287
Supplier number BAHCO 4040M-10-11
Warranty Lifetime warranty on Bahco? Or limited in time? Read more about it here.

Frequently asked questions about this product

Answered by specialists

What socket sizes does this flex-head wrench feature?: This wrench features two sizes: 10 mm on one end and 11 mm on the other end.
How far do the heads on the Bahco 4040M-10-11 swivel?: Both socket heads swivel 180° to provide easy access in confined spaces.
What is the benefit of the Dynamic-Drive profile?: The 12-point profile grips fasteners on the flats, reducing wear and preventing fastener rounding.
What material and finish are used for this wrench?: It is made of high-performance alloy steel with a chrome-plated micro-matte finish.
What is the overall length of this tool?: This double flex-head wrench has an overall length of 199 mm.