Which screw types is this bit suitable for?

This bit is designed for Torx Tamper Resistant security screws (with pin) in size T20H as well as standard Torx T20 screws.

What drive connection does this bit use?

It features a standard 1/4" E6,3 hex drive according to DIN 3126 / ISO 1173 for bit holders, drills, and screwdrivers.

What is the length of this screwdriver bit?

This bit has a total length of 90 mm, making it ideal for easily accessing deep-set screws.

Can you use this bit on standard Torx screws?

Yes, thanks to the central hole, a T20H bit fits both standard T20 screws and T20 tamper-resistant security screws.

WIHA 70450TR20090 bit Professional Torx Tamper Resistant T20H x 90 mm - 39190

Name: WIHA 70450TR20090 bit Professional Torx Tamper Resistant T20H x 90 mm - 39190
Brand: WIHA
SKU: 08075088
Price: 8 EUR
Availability: PreOrder

Supplier number: WIHA 39190 | EAN 4010995391904

8.00 tax incl.

€6.61 excl. VAT (incl. all environmental contributions)

On order: delivered from 22/10/2026

The minimum purchase order quantity for the product is 5.

Delivery by DHL

✆ Talk to a specialist

Secure fastened joints with the Wiha driver bit

Practical benefits

Reach deeply recessed fasteners easily: With a 90 mm length, you easily access fasteners situated in tight and deep recesses.
Reliable grip on security screws: The integrated center bore fits Tamper Resistant Torx profiles perfectly to reduce cam-out.
Durable through-hardened steel core: Premium chrome-vanadium steel ensures you benefit from outstanding wear resistance during heavy daily tasks.

In a nutshell

The right choise for

With the Wiha 70450TR20090 Professional driver bit, you fasten and remove security screws with complete confidence. The integrated center bore on the T20H tip fits pinned Torx Tamper Resistant profiles precisely, preventing cam-out and head damage. Thanks to its extended 90 mm length, you easily access deep-set screws in narrow housings and recessed channels. Made from through-hardened chrome-vanadium steel, it provides outstanding wear resistance during demanding daily servicing and assembly work. The standard 1/4" E6.3 hex drive according to din 3126 and iso 1173 ensures seamless compatibility with your bit holders and drills.

Product information FAQ

€8.00

tax incl.

Key features according to our expert

Length: 90 mm
Blade thickness: Not applicable
Type of drive profile (bit): Torx Tamper Resistant
Bit profile: TT20
Drive profile size (bit): 20
Product Range: Wiha Professional

Product description

Meets your requirements: Robust and precise bits for general fastening in trade and industry.
Increases your efficiency: Best rotation characteristics for stable fastening processes.
Saves time: Simple and quick recognition of profile sizes thanks to contrasting laser marking.
Increases your efficiency: Optimum access to low-lying screws thanks to extra-long 90 mm bits.
Product dimensions: 90 x 6 x 7 mm (LxWxD)
Drive: DIN 3126, ISO 1173, style E 6.3.
Application: For all types of screw applications in trade and industry.
Extra: Hole in the bit tip for TORX Tamper Resistant security screws.
Material: High grade chrome-vanadium steel, through hardened.
DIN 3126, ISO 1173, Style E6,3

All Features

Length: 90 mm
Blade thickness: Not applicable
Type of drive profile (bit): Torx Tamper Resistant
Bit profile: TT20
Drive profile size (bit): 20
Torx® tamper resistant 1: T20H
Self service - packing: No
With battery / rechargeable battery: No
Tool for electrics: No
Overall length (mm): 90 mm
Esd article: No
Product range: Wiha Professional

Brand WIHA
08075088
EAN 4010995391904
Supplier number WIHA 39190

Frequently asked questions about this product

Answered by specialists

Which screw types is this bit suitable for?: This bit is designed for Torx Tamper Resistant security screws (with pin) in size T20H as well as standard Torx T20 screws.
What drive connection does this bit use?: It features a standard 1/4" E6,3 hex drive according to DIN 3126 / ISO 1173 for bit holders, drills, and screwdrivers.
What is the length of this screwdriver bit?: This bit has a total length of 90 mm, making it ideal for easily accessing deep-set screws.
Can you use this bit on standard Torx screws?: Yes, thanks to the central hole, a T20H bit fits both standard T20 screws and T20 tamper-resistant security screws.