What is the size of this combination spanner?

This combination spanner has a size of 20 mm on both ends.

What is the overall length of the tool?

The total length of this spanner is 270 mm.

What is the benefit of the UD profile on the ring end?

The UD profile ensures optimal force distribution and protects bolt or nut corners from rounding.

What is the offset angle of the ring end?

The ring end is offset by 10° from the shaft for better clearance in confined spaces.

Is this combination spanner non-sparking?

No, this spanner is made from chrome-plated vanadium steel and is not non-sparking.

GEDORE 1 B 20 ring spanner UD profile 20 mm - 6001990

Name: GEDORE 1 B 20 ring spanner UD profile 20 mm - 6001990
Brand: GEDORE
SKU: 41890017
Price: 17.8 EUR
Availability: InStock

Supplier number: GEDORE 6001990 | EAN 4010886600191

Recommended Retail Price €31.07

17.80 tax incl.

€14.71 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 2 products in stock.

Ordered before 20:00 - delivered as of 13/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Efficient fastening with Gedore

Practical benefits

Gentle high torque delivery: The specialized UD profile ensures you transmit force across fastener flats to prevent rounded bolt heads.
Easy clearance in recesses: An offset ring of 10° provides you with excellent access around deep-seated or obstructed nuts.
Reliable everyday leverage power: A length of 270 mm allows you to apply strong controlled leverage to any 20 mm fitting.

In a nutshell

The right choise for

With the Gedore 1 b 20 combination spanner, you can tighten and loosen 20 mm fasteners with confidence and precision. The specialized ud profile on the ring end applies torque evenly across the fastener flats, preventing rounded bolt heads and surface damage. Its 10° offset ring provides ample clearance and a secure grip around recessed or obstructed fittings. Measuring 270 mm in total length, this spanner delivers strong and dependable leverage to handle demanding maintenance and assembly tasks across automotive and industrial equipment.

Product information FAQ

€17.80

In stock - tax incl.

Key features according to our expert

Width across flats: 20 mm
Non-sparking: No
Length: 270 mm

Product description

Construction in accordance with DIN 3113 form B
ISO 3318
ISO 7738
Size 5 and 5.5 mm with hexagonal ring, from 6 mm with UD profile
Chrome vanadium steel 31CrV3, chrome-plated
Carefully forged and expertly machined
Ring bent and angled at 10°, with UD profile for careful force transmission
Overload is indicated by deformation
Deep-set or countersunk nuts or screws can be safely operated even with the curved washer
High industrial quality for continuous use under severe conditions, * not standardised

All Features

Width across flats: 20 mm
Non-sparking: No
Length: 270 mm
Head height 2 [mm]: 8.5 mm
Surface area: chromed
Head height 1 [mm]: 14.5 mm
Standard: non-standardized
Head width 1 [mm].: 29.2 mm
Key width 1 [mm]: 20
Crown heights 1: 24.5 mm
Head width 2 [mm]: 44 mm
Weight lbs]: 0.540 lbs
Ring offset: 10°
Bekstand 1: 15°
Material: Vanadium steel 31CrV3
Overall length [mm]: 270 mm

Brand GEDORE
41890017
EAN 4010886600191
Supplier number GEDORE 6001990

Frequently asked questions about this product

Answered by specialists

What is the size of this combination spanner?: This combination spanner has a size of 20 mm on both ends.
What is the overall length of the tool?: The total length of this spanner is 270 mm.
What is the benefit of the UD profile on the ring end?: The UD profile ensures optimal force distribution and protects bolt or nut corners from rounding.
What is the offset angle of the ring end?: The ring end is offset by 10° from the shaft for better clearance in confined spaces.
Is this combination spanner non-sparking?: No, this spanner is made from chrome-plated vanadium steel and is not non-sparking.