Make straight and angled cuts in wood and metal, with the blade lowering onto the stationary workpiece.

Abrasive disc for fast metal chop saws DW871 DeWalt DT3450-QZ
Key features
- Disc thickness (mm)3
- Hole size (mm)25,4
- Disc diameter (mm)355
What it is
The DT3450-QZ by DeWalt is the abrasive cut-off disc for the DW871 metal chop saw: diameter 355 mm, thickness 3 mm, bore 25.4 mm. It is made of fibreglass-reinforced resin, with aluminium oxide abrasive and A30TBF specification. It is not a toothed blade: it cuts by abrasion and wears down with use, reducing its own diameter.
A metal cutting disc is a thin reinforced-resin abrasive disc that cuts steel, stainless steel, aluminium, rebar and sections with an angle grinder or cut-off saw.
What it is for
Used for cutting metal sections, sheet and tube.
How to use it
Check that the diameter, bore and maximum speed match the machine, and fit it with the correct flanges and the guard in position. Cut with the disc perpendicular to the workpiece, which is clamped in a vice, without bending the disc or using its side for grinding. Use a dedicated stainless steel or aluminium disc where required, and discard any disc that is chipped or past its printed expiry date.
Where it is used
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Disc thickness (mm): 3
- Hole size (mm): 25,4
- Disc diameter (mm): 355
Who it is for
Designed for metal fabricators, plumbers and welders.
Related products
- Standard abrasive disc (pack of 10) DeWalt DT42335TZ-QZ
- Standard abrasive disc (pack of 10) DeWalt DT42340TZ-QZ
- Cordless angle grinder 125 mm XR lithium 18V 5.0Ah brushless DeWalt DCG405P2-QW — from the category Angle Grinders
- Mitre saw, 216 mm, XR FlexVolt 54V brushless (without batteries) DeWalt — from the category Cordless and Corded Mitre Saws
- Pair of magnetic aluminium jaw covers Fervi 0042/100 — from the category Vices and Clamps
- Browse the whole category: Metal Cutting Discs
Before you order
In your request, please state the diameter 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
| Disc thickness (mm) | 3 |
|---|---|
| Hole size (mm) | 25,4 |
| Disc diameter (mm) | 355 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
For safety
Protect eyes and face from fragments, dust, splashes and impacts.
Protect hearing from the noise of machines and tools by reducing the sound reaching the ear.
Protect hands from abrasion, dirt, liquids and minor cuts while keeping a firm grip.




