Which materials can this spade bit drill into?

It is suitable for fast drilling in hardwood, softwood, lumber, and wood containing nails.

What type of shank does the Dewalt DT4786-QZ have?

It features a 1/4" hex shank that prevents slipping in drill chucks and bit holders.

What are the dimensions of this spade bit?

The bit has a diameter of 22 mm and an extra-long overall length of 406 mm for deep drilling.

What material is this drill bit made of?

It is manufactured from durable chrome-vanadium steel with a thick shank for extended tool life.

DEWALT DT4786-QZ speed drill EXTREME Ø22 mm, working length 406 mm

Name: DEWALT DT4786-QZ speed drill EXTREME Ø22 mm, working length 406 mm
Brand: DEWALT
SKU: 03041792
Price: 9.95 EUR
Availability: PreOrder

Supplier number: DEWALT DT4786-QZ | EAN 5035048073186

Recommended Retail Price €22.02

9.95 tax incl.

€8.22 excl. VAT (incl. all environmental contributions)

On order: delivered from 23/10/2026

Ordered before 20:00 - delivered as of 23/10/2026
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.

Deep and fast drilling with the Dewalt spade bit

Practical benefits

Extended reach for timber: The 406 mm length allows you to drill deep holes easily through thick joists and structural timbers.
Secure and slip-proof grip: A 1/4" hex shank fits quickly into standard holders and prevents slipping under heavy drilling loads.
Durable chrome-vanadium build: Engineered with thick chrome-vanadium steel and chamfered spurs, it maintains clean cutting performance even through nail-embedded wood.

In a nutshell

The right choise for

With the Dewalt DT4786-QZ spade bit, you drill deep holes quickly and effortlessly through thick structural timber. Thanks to its generous length of 406 mm, you can easily bore through heavy joists, beams, and stud walls without needing an extension rod. Featuring a 22 mm diameter and two cutting edges, this robust chrome-vanadium steel bit powers through softwood, hardwood, lumber, and even nail-embedded wood. The 1/4" hex shank guarantees a firm, slip-proof fit in your drill chuck or bit holder, providing the stability and control you need when installing plumbing or electrical pass-throughs.

Product information FAQ

€9.95

tax incl.

Key features according to our expert

Diameter: 22 mm
Drill bit type: Wood drill bit
Overall length: 406 mm
Shank size: 1/4 inch
Shank type: Hexagonal
Material (drill bit): Chrome-vanadium steel
Number of cutting edges: 2
Product Range: Dewalt EXTREME

Product description

Speed drill EXTREME Ø22mm, working length 406mm

Features

For fast and accurate results in hard wood, soft wood and wood with nails
Extra thick and robust steel for excellent durability.

All Features

Diameter: 22 mm
Drill bit type: Wood drill bit
Overall length: 406 mm
Shank size: 1/4 inch
Shank type: Hexagonal
Material (drill bit): Chrome-vanadium steel
Number of cutting edges: 2
Performance: 1,0
Weight: NO
Material: 406,0 mm
Diameter: Wood
Max. cutting capacity at 45° [square profile]: 22,0 mm
Thickness: Extreme
Product range: Dewalt EXTREME

Brand DEWALT
03041792
EAN 5035048073186
Supplier number DEWALT DT4786-QZ

Frequently asked questions about this product

Answered by specialists

Which materials can this spade bit drill into?: It is suitable for fast drilling in hardwood, softwood, lumber, and wood containing nails.
What type of shank does the Dewalt DT4786-QZ have?: It features a 1/4" hex shank that prevents slipping in drill chucks and bit holders.
What are the dimensions of this spade bit?: The bit has a diameter of 22 mm and an extra-long overall length of 406 mm for deep drilling.
What material is this drill bit made of?: It is manufactured from durable chrome-vanadium steel with a thick shank for extended tool life.