Drill and drive screws cordless, with an adjustable clutch to avoid stripping the screws.

Cobalt HSS-E drill bits 5.2mm loose x10 DeWalt DT4931-QZ
Key features
- Pieces per pack10
- Application materialMetal
- Size (mm)5,2
What it is
The DeWalt DT4931-QZ is a metal drill bit measuring 5.2 mm, belonging to the range of DeWalt cobalt high-speed steel accessories for drilling steels. The 5.2 mm diameter meets the needs of pilot holes and fixing holes where a specific size is required, typical of mechanical and metal fabrication work.
A metal drill bit is an HSS, cobalt or coated twist drill for drilling steel, cast iron, non-ferrous metals and plastic with a drill or drill driver.
What it is for
Used for drilling steel, stainless steel and aluminium, on a pillar drill or with a hand-held drill and in workshop machining of steel, aluminium and alloy parts.
How to use it
Mark the centre with a centre punch, clamp the workpiece and drill at a speed that is lower the larger the diameter and the harder the material. Maintain steady pressure, lubricate with cutting oil on steel and stainless steel and, for large diameters, drill a pilot hole first. Withdraw the bit frequently to clear the swarf, and never touch the swarf with bare hands.
Where it is used
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Pieces per pack: 10
- Application material: Metal
- Size (mm): 5,2
Who it is for
Designed for metal fabricators, industrial maintenance technicians and mechanics.
Related products
- Cobalt HSS-E drill bits 5.5mm loose x10 DeWalt DT4932-QZ
- Cobalt HSS-E drill bits 4mm loose x10 DeWalt DT4924-QZ
- Centre punch for holes Fervi 0734/1 — from the category Scribers and Punches
- Pillar drill with magnetic base, 1200W, DeWalt DWE1622K-QS — from the category Pillar Drills
- Universal support for portable vice stand Fervi 1515/SU — from the category Vices and Clamps
- Browse the whole category: Metal Drill Bits
Before you order
In your request, please state the dimensions and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 3
| Pieces per pack | 10 |
|---|---|
| Application material | Metal |
| Size (mm) | 5,2 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Drill precise, perpendicular holes with the workpiece clamped beneath the bit.
Mark lines and centres on metal before drilling and drive out pins and dowels.
Lubricate two-stroke engines, chains, compressors and hydraulic systems, reducing wear.
For safety
Protect eyes and face from fragments, dust, splashes and impacts.





