Which sizes are included in this set?

The set includes 5 countersink bits of 35 mm length in sizes M3, M4, M5, M6, and M8, supplied in a plastic storage box.

What drive fitting do these countersink bits have?

The bits feature a standard 1/4" hex drive, making them compatible with standard bit holders and drills.

What are these countersink bits used for?

They are used for burr-free countersinking and deburring of holes and screw heads in various materials.

Is a storage box included?

Yes, the bits come in a compact and practical plastic storage box.

WIHA 79186B5 sovereign drill bit set 1/4" 6-piece incl. box - 28027

Name: WIHA 79186B5 sovereign drill bit set 1/4" 6-piece incl. box - 28027
Brand: WIHA
SKU: 08075174
Price: 67.4 EUR
Availability: PreOrder

Supplier number: WIHA 28027 | EAN 4010995280277

67.40 tax incl.

€55.70 excl. VAT (incl. all environmental contributions)

On order: delivered from 08/10/2026

set

Ordered before 20:00 - delivered as of 08/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Chatter-free countersinking with Wiha

Practical benefits

Smooth finish without chatter: Precision-ground HSS steel ensures clean chip removal, letting you achieve burr-free recesses in metal, wood, and plastic.
Fast bit changes everyday: The standard 1/4" hex shank lets you insert and change bits quickly in any cordless drill or driver.
Organized set of sizes: Five versatile sizes covering M3 to M8 come neatly stored in a durable plastic box for easy access.

In a nutshell

The right choise for

With the Wiha 79186B5 countersink bit set, you achieve smooth, chatter-free countersinks and burr-free edges in wood, metal, and plastic. Ground hss steel ensures clean chip removal so that screw heads sit completely flush with the material surface. The standard 1/4" hex drive allows fast and effortless bit changes in your drill or cordless driver during assembly or maintenance tasks. Featuring five versatile sizes from M3 to M8, you always have the right tool at hand, neatly organized and protected in the included compact plastic storage box.

Product information FAQ

€67.40

tax incl.

Key features according to our expert

Scope of delivery

1x Countersink bit 1/4" M3 x 35 mm (10234)
1x Countersink bit 1/4" M4 x 35 mm (27893)
1x Countersink bit 1/4" M5 x 35 mm (27894)
1x Countersink bit 1/4" M6 x 35 mm (27895)
1x Countersink bit 1/4" M8 x 35 mm (27896)
1x Box

Product description

Product dimensions: 101 x 31 x 80 mm (LxWxD)
Extra: In plastic box.
DIN 3126, ISO 1173, Style C6,3

All Features

Esd article: No
Tool for electrics: No
With battery / rechargeable battery: No
Self service - packing: No

Brand WIHA
08075174
EAN 4010995280277
Supplier number WIHA 28027

Frequently asked questions about this product

Answered by specialists

Which sizes are included in this set?: The set includes 5 countersink bits of 35 mm length in sizes M3, M4, M5, M6, and M8, supplied in a plastic storage box.
What drive fitting do these countersink bits have?: The bits feature a standard 1/4" hex drive, making them compatible with standard bit holders and drills.
What are these countersink bits used for?: They are used for burr-free countersinking and deburring of holes and screw heads in various materials.
Is a storage box included?: Yes, the bits come in a compact and practical plastic storage box.