Make straight cuts in wood and boards with a rotating blade, including plunge cuts and bench-mounted use.

Circular saw blade PCD for fibre cement 115 mm 4T DeWalt DT20421-QZ
Key features
- External diameter (mm)115
- No. of teeth4
- TypeBlades for circular saws
What it is
Circular saw blade PCD for fibre cement 115 mm 4T DeWalt DT20421-QZ. Key specifications: external diameter (mm) 115, no. of teeth 4, type Blades for circular saws.
A circular saw blade is a toothed disc, usually carbide-tipped, for circular saws, mitre saws and plunge saws; it cuts wood, panels, metals and plastics.
What it is for
Used for floor laying, from the screed to the finish, for cutting solid wood, panels and battens, on the bench or on site and for cutting building materials, from clay brick to concrete.
How to use it
Choose a blade with a diameter, bore and kerf compatible with the machine and teeth suited to the material: fewer teeth for fast cuts, more for fine cuts. With the machine unplugged, fit it with the rotation arrow matching that of the saw and tighten the flange. Cut with the guard working, letting the blade reach full speed before entering the workpiece, and wear safety glasses and hearing protection.
Where it is used
- Residential construction
- Renovation
Technical data
- External diameter (mm): 115
- No. of teeth: 4
- Type: Blades for circular saws
Who it is for
Designed for formwork carpenters, drywall installers, joiners and floor layers.
Related products
- Circular saw blade PCD for fibre cement and laminate 160 mm 4T DeWalt DT1470-QZ
- Circular Saw Blade, Extreme Workshop, 305mm, 72T, 30mm Bore, DeWalt
- Workpiece support for DW742/DW743 DeWalt DE3495-XJ — from the category Circular Saws (Cordless, Corded, Band) and Table Saws
- Sliding mitre saw 305 mm double bevel 18 V XR FlexVolt with XPS cutline system, bare tool, DeWalt DCS782N-XJ — from the category Cordless and Corded Mitre Saws
- Face protection visor Safe PC T5 GO Irudek — from the category Safety Glasses, Goggles and Face Shields
- Browse the whole category: Circular Saw Blades
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
| External diameter (mm) | 115 |
|---|---|
| No. of teeth | 4 |
| Type | Blades for circular saws |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Vacuum dry and wet dirt in intensive cleaning of offices, workshops and building sites.
For safety
Protect the airways from dust, fumes, gases and vapours during work.
Protect eyes and face from fragments, dust, splashes and impacts.




