Which holders are compatible with this slimBit?

This 6 mm bit is designed for Wiha slimVario holders, SpeedE handles, and TorqueVario-S electric tools.

What voltage rating does this bit provide?

It is individually tested according to IEC 60900 and rated for work on live parts up to 1,000 V AC.

What are the exact dimensions and drive profile of this bit?

The bit features a 4 mm hexagon (HEX) drive profile and a total length of 75 mm.

Can this bit reach low-lying or deep-set screws?

Yes, the integrated insulation allows for a blade that is up to 33% slimmer.

What is the maximum torque rating for this bit?

The maximum torque value for this 4 mm hex bit is 5.5 Nm.

WIHA 283118040 bit slimBit electric hexagonal 4 x 75 mm - 37225

Name: WIHA 283118040 bit slimBit electric hexagonal 4 x 75 mm - 37225
Brand: WIHA
SKU: 02972239
Price: 7.88 EUR
Availability: PreOrder

Supplier number: WIHA 37225 | EAN 4010995372255

7.88 tax incl.

€6.51 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
Delivered from Belgium

✆ Talk to a specialist

Safe fastening with the Wiha slimBit hex bit

Practical benefits

Certified electrical safety: You work safely on live components up to 1,000 V AC thanks to testing according to IEC 60900.
Access to deep screws: The integrated insulation allows you to reach low-lying hex fasteners effortlessly without blade obstruction.
Compact interchangeable design: You reduce bulk in your tool bag by pairing this slim bit with compatible insulated handles.

In a nutshell

The right choise for

Work safely on live electrical components up to 1,000 V ac with the Wiha slimBit electric hex bit. Featuring integrated insulation, the blade is up to 33% slimmer, allowing you to reach deep-set 4.0 mm hex fasteners and recessed terminal blocks without snagging. Individually tested to iec 60900 standards, this 75 mm bit is compatible with slimVario, SpeedE, and TorqueVario-S electric handles at a maximum torque of 5.5 Nm. It reduces bulk in your tool bag while giving you dependable control on every installation.

Product information FAQ

€7.88

tax incl.

Key features according to our expert

Length: 75 mm
Blade thickness: Not applicable
Bit tip: HEX 4 mm
Drive profile size (bit): 4 mm
Product Range: Wiha slimBit

Product description

Increases your safety: Wiha slimBits ensure good, protected access to deep-set screws.
Saves space: Extensive interchangeable bit system saves you space.
Offers you full protection: Each tool individually tested at 10,000 V AC and approved for 1,000 V AC.
Product dimensions: 75 x 6 x 6 mm (LxWxD)
Application: For work in the area of live parts up to 1,000 V AC.
To reach low-lying screws, the blade diameter is often too large in conventional electric screwdrivers. Because removing insulation is not permitted and also compromises the user's safety, protective insulation has been integrated into the blade with the Wiha slimTECHNOLOGY. This has been specially developed for electrical applications, thereby ensuring blades up to 33% slimmer. This means low-lying screw and spring elements can also be easily reached with the slimBits. The insulated slimBits undergo individual piece testing as per the international IEC 60900 standard, *providing users with a tool to work safely on live parts up to 1,000 V AC. 6 mm slimBits only to be used in the slimVario bit holder and slimTorque VDE bit holder (VDE torque system).
Manufactured acc. to IEC 60900.

All Features

Length: 75 mm
Blade thickness: Not applicable
Bit tip: HEX 4 mm
Drive profile size (bit): 4 mm
Torque value max (nm): 5.5 Nm
Self service - packing: No
Vde certified: Yes
With battery / rechargeable battery: No
Tool for electrics: Yes
Internal hexagon (mm): 4 mm
Esd article: No
Overall length (mm): 75 mm
Product range: Wiha slimBit

Brand WIHA
02972239
EAN 4010995372255
Supplier number WIHA 37225

Frequently asked questions about this product

Answered by specialists

Which holders are compatible with this slimBit?: This 6 mm bit is designed for Wiha slimVario holders, SpeedE handles, and TorqueVario-S electric tools.
What voltage rating does this bit provide?: It is individually tested according to IEC 60900 and rated for work on live parts up to 1,000 V AC.
What are the exact dimensions and drive profile of this bit?: The bit features a 4 mm hexagon (HEX) drive profile and a total length of 75 mm.
Can this bit reach low-lying or deep-set screws?: Yes, the integrated insulation allows for a blade that is up to 33% slimmer.
What is the maximum torque rating for this bit?: The maximum torque value for this 4 mm hex bit is 5.5 Nm.