What are Wiha Y-bits specifically designed for?

Y-bits are optimized for Y-shaped screws with countersunk heads where the angle under the head is not 90°.

Can these bits be used in impact drivers?

Yes, thanks to the patented torsion zone, these bits easily withstand the high torque loads of impact drivers and power drills.

What drive fitting do these screw bits have?

They feature a standard 1/4" hex drive (C6,3 style according to DIN 3126 and ISO 1173).

What is the benefit of the yellow bit marking?

The yellow coating enables fast profile identification and glows under UV light so you can easily locate dropped bits.

What is included in the Wiha 7929Y02025 set?

The set includes 25 Torx T20 screw bits measuring 25 mm in length, supplied in a storage box.

WIHA 7929Y02025 bit set Y-bit Torx T20 x 25 mm 25-piece in box - 42303

Name: WIHA 7929Y02025 bit set Y-bit Torx T20 x 25 mm 25-piece in box - 42303
Brand: WIHA
SKU: 08075187
Price: 38.2 EUR
Availability: PreOrder

Supplier number: WIHA 42303 | EAN 4010995423032

38.20 tax incl.

€31.57 excl. VAT (incl. all environmental contributions)

On order: delivered from 20/10/2026

box

Delivery by DHL

✆ Talk to a specialist

Efficient fastening with the Wiha bit set

Practical benefits

Maximum durability under load: The patented torsion zone lets you drive screws with impact drivers while significantly reducing bit wear and breakage.
Easy identification in the dark: You quickly spot the right bit thanks to the bright yellow UV-reflective marking on the body.
Reliable supply in box: A sturdy box containing 25 T20 bits ensures you always have dependable spares ready for demanding tasks.

In a nutshell

The right choise for

Drive fasteners continuously on demanding assembly and woodworking jobs with the Wiha 7929Y02025 bit set. This set contains 25 Torx T20 bits measuring 25 mm in length inside a handy storage box, specifically engineered for Y-shaped countersunk screws. Thanks to the patented torsion zone, these bits withstand severe torque peaks and perform reliably in impact drivers and cordless drills. The standard 1/4" C6,3 hex drive ensures universal bit holder compatibility. Additionally, the bright yellow UV-reflective coating helps you spot dropped bits quickly in low-light environments, keeping your workspace organized and efficient.

Product information FAQ

€38.20

tax incl.

Key features according to our expert

Length: 25 mm
Drive profile size (bit): 20
Blade thickness: Not applicable
Type of drive profile (bit): Torx
Connection size (bit): 1/4"
Bit profile: T20
Number per pack: 25

Scope of delivery

25x Y-Bit 25 mm TORX 1/4" T20

Product description

Increases your efficiency: The specialist with 120x greater lifespan* thanks to optimised bit for Y-shaped screws(*compared to Wiha standard bit)
Lowers your costs: Bit quick and easy to find thanks to yellow marking - even in dark environments by using an UV light.
Product dimensions: 110 x 25 x 50 mm (LxWxD)
Application: Suitable for fastening Y-shaped screws. Also suitable for power tools and impact screwdrivers.
Until now, when buying bits it hasn't been very easy to determine which bits are suitable for which applications. Wiha puts an end to this complexity of considering the appliance used, the fastening type and the large selection of different bits. Thanks to Wiha's revolutionary bit concept, only the screw shape is the deciding factor when selecting the right bit.For example, the Y-bit is ideal for fastening Y-shaped screws with an angle not equal to 90° between the thread and screw head. Thanks to its patented torsion zone, the bit is also suitable for power tools and impact screwdrivers and guarantees a 120x greater lifespan compared to Wiha standard bits. The coloured bits are also quick and easy to find, even in the dark by using an UV light, thanks to its fluorescent coating. This reduces the number of bits which are lost and saves on the expense of acquiring new ones.
DIN 3126, ISO 1173, Style C6,3

All Features

Length: 25 mm
Drive profile size (bit): 20
Blade thickness: Not applicable
Type of drive profile (bit): Torx
Connection size (bit): 1/4"
Bit profile: T20
Number per pack: 25
Esd article: No
Tool for electrics: No
With battery / rechargeable battery: No
Self service - packing: No

Brand WIHA
08075187
EAN 4010995423032
Supplier number WIHA 42303

Frequently asked questions about this product

Answered by specialists

What are Wiha Y-bits specifically designed for?: Y-bits are optimized for Y-shaped screws with countersunk heads where the angle under the head is not 90°.
Can these bits be used in impact drivers?: Yes, thanks to the patented torsion zone, these bits easily withstand the high torque loads of impact drivers and power drills.
What drive fitting do these screw bits have?: They feature a standard 1/4" hex drive (C6,3 style according to DIN 3126 and ISO 1173).
What is the benefit of the yellow bit marking?: The yellow coating enables fast profile identification and glows under UV light so you can easily locate dropped bits.
What is included in the Wiha 7929Y02025 set?: The set includes 25 Torx T20 screw bits measuring 25 mm in length, supplied in a storage box.