Which materials is this formwork drill bit suitable for?

It is suitable for formwork, boards, beams, plasterboard, insulation materials, and sandwich materials combining wood and metal.

Which drill chucks are compatible with this drill bit?

The bit features a 10 mm cylindrical shank, making it compatible with standard drill chucks of 10 mm or 13 mm.

What are the dimensions of this drill bit?

The bit has a 20 mm diameter, an overall length of 400 mm, and a 10 mm shank size.

Can this drill bit drill through nails?

Yes, manufactured from HSS steel, it easily drills through wood containing embedded nails.

How does this drill bit prevent jamming in wet wood?

Its tapered body and flared flute design prevent jamming, even in damp or wet wood.

BOSCH 2608596341 formwork/installation drill 20 x 400 mm, d 10 mm

Name: BOSCH 2608596341 formwork/installation drill 20 x 400 mm, d 10 mm
Brand: BOSCH
SKU: 02221973
Price: 28.95 EUR
Availability: PreOrder

Supplier number: BOSCH 2608596341 | EAN 3165140059473

Recommended Retail Price €57.20

28.95 tax incl.

€23.93 excl. VAT (incl. all environmental contributions)

On order: delivered from 16/10/2026

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Ordered before 20:00 - delivered as of 16/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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Smooth drilling through thick formwork layers

Practical benefits

Durable HSS steel body: Built from high-speed steel, this bit withstands high friction and heat during demanding deep wood drilling tasks.
Extended 400 mm reach: You easily penetrate thick formwork, beams, and multiple sandwich layers without stopping mid-way.
Reliable Bosch cylindrical shank: The 10 mm round shank securely fits into standard three-jaw keyed or keyless drill chucks.

In a nutshell

The right choise for

With the Bosch formwork drill bit, you easily drill clean 20 mm pass-through holes through thick formwork, structural beams, and layered sandwich materials. Thanks to its 400 mm total length, you achieve full depth in one pass without having to drill from both sides. The tough hss body powers through wood with embedded nails, while the tapered flute prevents jamming in wet wood. Featuring a 10 mm cylindrical shank that fits standard chucks, this drill bit provides the reach and reliability needed for running pipes and cables on site.

Product information FAQ

€28.95

tax incl.

Key features according to our expert

Diameter: 20 mm
Drill bit type: Formwork drill bit
Overall length: 400 mm
Shank size: 10 mm
Shank type: Cylindrical
Material (drill bit): HSS
Number of cutting edges: 2 ea
Cutting length: 400 mm

Product description

Formwork/Installation drill 20 x 400 mm, d 10 mm
Robust for formwork
Installation auger is very robust for formwork
The drill bit and shank end are bolted in place, with a low risk of breakage and ensuring smooth drilling

Advantages

Very robust for formwork - The installation auger is very robust and intended for formwork.
Drill bit and shank end are screwed on, therefore low risk of breakage and smooth drilling.
The flared spiral and the tapered drill and shank ends prevent jamming, even in damp wood, while sufficient force is applied to drill through driven-in nails.
The drill has an extra-long shank and is versatile, in layered building materials or sandwich materials, e.g. for formwork construction and for indoor installation work, plumbing installation, heating construction and electrical installation.
Suitable for formwork work, boards, beams, plasterboard, light building materials, insulation material and metal, e.g. metal sheets, sandwich material with steel, aluminium or profiled sheet.
The drill's cylindrical shank is suitable for all drills with a 13 mm chuck.
The installation drill bit is made of HSS (high-speed steel) in accordance with DIN 7490.
The drill bit has a 118-degree conical shank.
Cylindrical shank compatible with three-claw drill chucks.

All Features

Diameter: 20 mm
Drill bit type: Formwork drill bit
Overall length: 400 mm
Shank size: 10 mm
Shank type: Cylindrical
Material (drill bit): HSS
Number of cutting edges: 2 ea
Cutting length: 400 mm
Diameter (d) mm: 20
Overall length (l2) mm: 400
Shaft diameter (d) mm: 10

Brand BOSCH
02221973
EAN 3165140059473
Supplier number BOSCH 2608596341

Frequently asked questions about this product

Answered by specialists

Which materials is this formwork drill bit suitable for?: It is suitable for formwork, boards, beams, plasterboard, insulation materials, and sandwich materials combining wood and metal.
Which drill chucks are compatible with this drill bit?: The bit features a 10 mm cylindrical shank, making it compatible with standard drill chucks of 10 mm or 13 mm.
What are the dimensions of this drill bit?: The bit has a 20 mm diameter, an overall length of 400 mm, and a 10 mm shank size.
Can this drill bit drill through nails?: Yes, manufactured from HSS steel, it easily drills through wood containing embedded nails.
How does this drill bit prevent jamming in wet wood?: Its tapered body and flared flute design prevent jamming, even in damp or wet wood.