Which machines are compatible with this drill bit?

This hammer drill bit features an SDS-max shank and fits rotary hammers with an SDS-max chuck.

Which materials can you drill with this bit?

The 4-cutter carbide head is designed for (reinforced) concrete, masonry, and natural stone.

What is the maximum working drilling depth?

The drill bit has an overall length of 540 mm and an effective working length of 400 mm.

What is the benefit of the 4-cutter head design?

The 4 carbide cutting edges deliver rounder holes, lower vibration, and enhanced durability when hitting rebar.

Can you use this drill bit in an SDS-plus chuck?

No, SDS-max shanks are larger and do not fit directly into a standard SDS-plus tool holder.

DEWALT DT9420-QZ SDS-Max drill bit EXTREME HM 22x400x540mm

Name: DEWALT DT9420-QZ SDS-Max drill bit EXTREME HM 22x400x540mm
Brand: DEWALT
SKU: 02505920
Price: 47.6 EUR
Availability: PreOrder

Supplier number: DEWALT DT9420-QZ | EAN 5035048059876

Recommended Retail Price €105.03

47.60 tax incl.

€39.34 excl. VAT (incl. all environmental contributions)

On order: delivered from 26/10/2026

Ordered before 20:00 - delivered as of 26/10/2026
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

What does this mean exactly?

Free battery, delivered directly: spend a total of €350 excl. VAT on DeWALT products and receive a free XR 18V 5.0Ah battery worth €128.38. This is an exclusive Klium promotion: the battery is automatically added to your shopping cart and delivered together with your order.
Free work light, delivered after registration: if you also purchase a participating product from the DeWALT work light promotion, you will receive a free DeWALT work light, depending on the participating machine.
To receive your free work light, register your purchase after receiving your order via dewalt.be or dewalt.nl.
Klium free battery promotion: valid from 01.10.2026 to 31.12.2026.
DeWALT work light promotion: valid from 01.09.2026 to 31.12.2026.

During DeWALT Power Month, you can combine a free battery from Klium with a free work light from DeWALT.

Fast drilling in reinforced concrete

Practical benefits

Durable Dewalt 4-cutter head: The solid carbide 4-cutter tip geometry resists rebar strikes and creates precise, concentric holes.
Rapid debris removal design: The 4-flute helix clears dust quickly from the hole so you maintain consistent drilling speed.
Efficient impact energy transfer: A reinforced core with SDS-Max shank ensures you transfer full hammer energy directly to the tip.

In a nutshell

The right choise for

With the Dewalt DT9420-QZ SDS-Max hammer drill bit, you drill deep, precise holes through reinforced concrete, masonry, and natural stone. The robust 4-cutter carbide head delivers concentric holes and prevents jamming when striking rebar. Offering a 400 mm working length and a 540 mm overall length, this bit is ideal for drilling deep wall penetrations for conduit and pipework, as well as structural anchor fixings. The reinforced core and SDS-Max shank transfer full hammer impact energy without slipping, while the 4-flute helix clears dust and debris quickly. This ensures you maintain drilling speed and control on demanding jobsite applications.

Product information FAQ

€47.60

tax incl.

Key features according to our expert

Diameter: 22 mm
Drill bit type: Hammer drill bit
Overall length: 540 mm
Shank type: SDS-max
Material (drill bit): Carbide tip
Number of cutting edges: 4
Cutting length: 400 mm
Product Range: Dewalt EXTREME

Product description

SDS-Max drill bit EXTREME HM 22x400x540mm

Features

4-fold spiral groove, the core of which has been retorted for greater durability, maximises fast removal of drill cuttings
Sturdy cutting head is flanked by two separate cutting tips that deliver fast and efficient drilling speed

All Features

Diameter: 22 mm
Drill bit type: Hammer drill bit
Overall length: 540 mm
Shank type: SDS-max
Material (drill bit): Carbide tip
Number of cutting edges: 4
Cutting length: 400 mm
Thickness: Impact Bits
Weight: NO
Applications: Concrete
Length: 540,0 mm
Material: Carbide Grit
Diameter: 22,0 mm
Product type: 1,0
Max. cutting capacity at 45° [square profile]: SDS Max Fitment
Performance: Extreme
Working length: 400,0 mm
Product range: Dewalt EXTREME

Brand DEWALT
02505920
EAN 5035048059876
Supplier number DEWALT DT9420-QZ

Frequently asked questions about this product

Answered by specialists

Which machines are compatible with this drill bit?: This hammer drill bit features an SDS-max shank and fits rotary hammers with an SDS-max chuck.
Which materials can you drill with this bit?: The 4-cutter carbide head is designed for (reinforced) concrete, masonry, and natural stone.
What is the maximum working drilling depth?: The drill bit has an overall length of 540 mm and an effective working length of 400 mm.
What is the benefit of the 4-cutter head design?: The 4 carbide cutting edges deliver rounder holes, lower vibration, and enhanced durability when hitting rebar.
Can you use this drill bit in an SDS-plus chuck?: No, SDS-max shanks are larger and do not fit directly into a standard SDS-plus tool holder.