Which materials is this drill bit suitable for?

It is designed for metal, steel, iron, nickel, and bronze, and also drills wood and plastics.

Can you use this drill bit in an impact driver?

Yes, the 1/4" hex shank is engineered for use in both impact drivers and standard drill chucks.

What are the exact dimensions of this drill bit?

The bit features a 3.5 mm diameter, a 29 mm cutting length, and a 76 mm overall length.

What is the benefit of the Black & Gold finish?

The surface finish protects the HSS steel against rust and reduces friction to extend service life.

Does the drill bit wander when starting a hole?

No, the 135° split point tip ensures accurate centering and prevents walking on smooth surfaces.

DEWALT DT20603-QZ IMPACT Black & Gold HEX metal drill bit 3.5mm

Name: DEWALT DT20603-QZ IMPACT Black & Gold HEX metal drill bit 3.5mm
Brand: DEWALT
SKU: 03236688
Price: 5.45 EUR
Availability: PreOrder

Supplier number: DEWALT DT20603-QZ | EAN 5054905301743

5.45 tax incl.

€4.50 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.

Clean drilling with Dewalt

Practical benefits

Precise starts without walking: The 135-degree split point prevents slipping on hard surfaces, ensuring you start drilling exactly where intended.
Impact driver ready shank: With the 1/4" hex shank, you achieve secure torque transfer in drills and impact drivers without bit slippage.
Resists rust and friction: The black and gold finish prevents corrosion and reduces heat buildup for a longer service life under heavy use.

In a nutshell

The right choise for

With the Dewalt DT20603-QZ, you drill quickly and accurately into metal, steel, iron, wood, and plastic. The 135° split point tip ensures immediate bite and eliminates walking on smooth surfaces for clean starts every time. Featuring a 1/4" hex shank, it locks securely into standard drill chucks and cordless impact drivers, transferring full torque without slipping. The durable Black & Gold finish actively guards the hss steel against corrosion and heat buildup during heavy-duty use. Take on demanding installation and metalworking jobs with complete confidence.

Product information FAQ

€5.45

tax incl.

Key features according to our expert

Diameter: 3,5 mm
Cutting length: 29 mm
Drill bit type: Metal drill bit
Overall length: 76 mm
Shank size: 1/4 inch
Shank type: Hexagonal
Material (drill bit): HSS
Surface treatment (drill bit): Gold
Number of cutting edges: 2

Product description

Black & Gold finish: helps prevent rust
135° centring tip prevents drift when drilling
Impact Ready - 1/4" hex shank designed to withstand radial torsion with impact hammers and compatible with most drills
Strong, tapered braided design for extreme durability and resistance to breakage

Applications

Steel
Iron
Nickel
Bronze
Wood
Plastic

All Features

Diameter: 3,5 mm
Cutting length: 29 mm
Drill bit type: Metal drill bit
Overall length: 76 mm
Shank size: 1/4 inch
Shank type: Hexagonal
Material (drill bit): HSS
Surface treatment (drill bit): Gold
Number of cutting edges: 2

Brand DEWALT
03236688
EAN 5054905301743
Supplier number DEWALT DT20603-QZ

Frequently asked questions about this product

Answered by specialists

Which materials is this drill bit suitable for?: It is designed for metal, steel, iron, nickel, and bronze, and also drills wood and plastics.
Can you use this drill bit in an impact driver?: Yes, the 1/4" hex shank is engineered for use in both impact drivers and standard drill chucks.
What are the exact dimensions of this drill bit?: The bit features a 3.5 mm diameter, a 29 mm cutting length, and a 76 mm overall length.
What is the benefit of the Black & Gold finish?: The surface finish protects the HSS steel against rust and reduces friction to extend service life.
Does the drill bit wander when starting a hole?: No, the 135° split point tip ensures accurate centering and prevents walking on smooth surfaces.