Which materials is this drill bit suitable for?

This HSS-G bit is suitable for alloyed and non-alloyed steel up to 900 N/mm², sheet metal, thin materials, wood, and plastics.

What are the dimensions of the Dewalt DT5554-QZ?

The drill bit features a diameter of 8.5 mm, a working length of 72 mm, and an overall length of 117 mm.

What type of shank does this metal drill bit have?

It has a cylindrical 8.5 mm shank with 3 flat surfaces to prevent slipping inside the drill chuck.

What is the benefit of the Extreme 2 pilot tip?

The pilot tip starts drilling instantly on contact without wandering, delivering clean, accurate, and burr-free holes.

How many drill bits are included in this pack?

This pack contains 10 identical 8.5 x 117 mm HSS-G metal drill bits.

DEWALT DT5554-QZ HSS-G metal drill bit EXTREME 2 Ø8.5mm (10 pcs)

Name: DEWALT DT5554-QZ HSS-G metal drill bit EXTREME 2 Ø8.5mm (10 pcs)
Brand: DEWALT
SKU: 08070785
Price: 27.6 EUR
Availability: PreOrder

Supplier number: DEWALT DT5554-QZ | EAN 5035048052242

Recommended Retail Price €60.98

27.60 tax incl.

€22.81 excl. VAT (incl. all environmental contributions)

On order: delivered from 04/11/2026

pack

Delivery by DHL

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Accurate drilling with Dewalt

Practical benefits

Immediate start without slipping: The pilot point begins cutting on contact so you get precise, burr-free holes without the bit walking across metal.
Strong resistance to breakage: A reinforced core provides superior durability, reducing breakage during heavy-duty metal drilling tasks.
Secure grip in chuck: The anti-slip shank design prevents spinning inside the chuck, allowing you to transfer torque smoothly and safely.

In a nutshell

The right choise for

With the Dewalt DT5554-QZ metal drill bits, you drill accurately and smoothly into alloyed and non-alloyed steel, sheet metal, profiles, wood, and plastics. The Extreme 2 pilot point cuts instantly on contact without wandering, eliminating the need for center punching and delivering clean, burr-free holes. a reinforced core offers dependable resistance against breakage during demanding jobs, while the 3-flat shank prevents spinning inside the drill chuck for optimal torque transfer. Featuring an 8.5 mm diameter, these bits are ideal for pre-drilling M10 tapping holes. Supplied in a practical pack of 10, this set keeps you fully prepared for any fabrication or assembly task.

Product information FAQ

€27.60

tax incl.

Key features according to our expert

Diameter: 8,5 mm
Drill bit type: Metal drill bit
Overall length: 117 mm
Shank size: 8,5 mm
Shank type: Cylindrical
Material (drill bit): HSS-G
Number of cutting edges: 2
Cutting length: 72 mm
Product Range: Dewalt EXTREME

Product description

HSS-G metal drill bit EXTREME 2 Ø8,5mm

Features

Suitable for mobile drilling of steel, alloyed and unalloyed up to 900N / mm²
Innovative drill bit with tapered tip significantly reduces breakage; with a gold iron oxide coating that prevents overheating for longer bit life
Three flat sides prevent the drill head from slipping

All Features

Diameter: 8,5 mm
Drill bit type: Metal drill bit
Overall length: 117 mm
Shank size: 8,5 mm
Shank type: Cylindrical
Material (drill bit): HSS-G
Number of cutting edges: 2
Cutting length: 72 mm
Performance: 10,0
Weight: NO
Length: 117,0 mm
Material: HSS
Diameter: Metal
Max. cutting capacity at 45° [square profile]: 8,5 mm
Thickness: Extreme
Working length: 72,0 mm
Product range: Dewalt EXTREME

Brand DEWALT
08070785
EAN 5035048052242
Supplier number DEWALT DT5554-QZ

Frequently asked questions about this product

Answered by specialists

Which materials is this drill bit suitable for?: This HSS-G bit is suitable for alloyed and non-alloyed steel up to 900 N/mm², sheet metal, thin materials, wood, and plastics.
What are the dimensions of the Dewalt DT5554-QZ?: The drill bit features a diameter of 8.5 mm, a working length of 72 mm, and an overall length of 117 mm.
What type of shank does this metal drill bit have?: It has a cylindrical 8.5 mm shank with 3 flat surfaces to prevent slipping inside the drill chuck.
What is the benefit of the Extreme 2 pilot tip?: The pilot tip starts drilling instantly on contact without wandering, delivering clean, accurate, and burr-free holes.
How many drill bits are included in this pack?: This pack contains 10 identical 8.5 x 117 mm HSS-G metal drill bits.