DeWalt DT40252 Extreme Metal Diamond Disc (125 × 22.2 mm)

Code: 1169
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€17,10 / pcs €14,13 excl. VAT Measure price: €17,10 / 1 pcs
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Category: Tiler Accessories & Consumables > Metal & Plastic Cutting Discs
DeWalt DT40252 Extreme Metal Diamond Disc (125 × 22.2 mm)

Revolutionary all-steel cutting disc engineered with vacuum-brazed diamond technology for angle grinders. Delivers 1,000+ cuts in steel and Inox, maintains a constant 125 mm diameter without shrinking, and completely eliminates wheel breakage risks.

🏗️ Constant cutting depth (zero wheel wear)
⚙️ 1,000+ cuts with zero odor or disc breakage
🎁 Tested at J&J Tile Design

Detailed information

Product detailed description

📊 Technical Specifications

Brand: DeWalt
Model: DT40252 (Extreme Metal)
Blade Diameter: 125 mm
Bore Diameter: 22.23 mm (standard M14)
Segment Thickness: approx. 1.3–1.5 mm
Technology: Vacuum-brazed diamond on structural steel core
Max. Working Speed: 12,250 RPM (80 m/s)
Part Number: DT40252-QZ

💡 Why choose this exact solution?

Hey tilers. We all know that endless hassle with standard bonded abrasive discs: you start cutting an MEP support rail or a heavy-gauge steel channel, and after five cuts your 125 mm disc shrinks down to the size of a coin, fills the workspace with thick, acrid black smoke, and can no longer reach through the workpiece. If the disc pinches in the kerf, it violently shatters into dangerous shrapnel. The DeWalt Extreme Metal DT40252 features a solid steel core with an engineered diamond cutting rim. Its diameter stays at exactly 125 mm from the first cut to the thousandth, the steel core cannot shatter, and you won't breathe in pulverized bakelite resin dust on site.

🛠️ Professional installation TIP: Never apply heavy downward pressure—diamond cuts through peripheral velocity rather than brute force. Keep the grinder perpendicular to the metal workpiece and allow high rotational speed to shave away the material. The rigid steel core with laser relief slots dissipates thermal stress efficiently and keeps cuts dead straight.
🔍 Expert perspective: We keep the DT40252 in our site bags as our heavy-duty workhorse for rough-cutting steel studs, threaded rods, bracket framing, and shower channel housings. Its ultimate value is operator safety: the solid steel core is physically unbreakable, eliminating flying shard injuries. Use a DF120 diamond pad to deburr cut edges cleanly, and wear Wussow gloves for firm grip.
✅ Key Advantages
  • Constant cutting depth – the disc retains its full 125 mm diameter throughout its working life.
  • Extreme durability – delivers 1,000+ cuts, replacing up to 30 traditional bonded abrasive discs.
  • Maximum job-site safety – solid steel chassis cannot shatter or explode during kerf pinches.
⚠️ What to watch out for
  • Not formulated for porcelain or ceramic tiles – use Montolit or Distar continuous rim blades for tile.
  • Kerf width is approximately 1.3–1.5 mm, which leaves a wider cut line than 1.0 mm ultra-thin trim blades.
  • When cutting thick solid bar stock, allow periodic no-load spinning to air-cool the diamond bond.

Practical FAQs

Why is this diamond blade better than standard black abrasive wheels?
Conventional wheels break down rapidly, constantly reduce maximum cutting depth, generate acrid resin smoke, and risk shattering. DeWalt Extreme Metal combines a solid steel disc with vacuum-brazed diamond crystals: the diameter never decreases, wheel dust is cut down dramatically, and it lasts up to 30 times longer.
Can this wheel cut stainless steel (Inox)?
Yes, it is fully rated for stainless steel, structural carbon steel, cast iron, and non-ferrous metals. The industrial diamond crystals grind through metal cleanly without contaminating the material with sulfur or chlorine.
Can I use this blade to cut ceramic tiles or concrete?
We do not recommend it. The diamond concentration and bond matrix are specifically tuned for metal swarf extraction. For cutting hard porcelain, vitreous ceramics, or natural stone, choose dedicated continuous-rim diamond blades such as the Montolit CGX or Distar Edge Dry[cite: 1, 2].

Additional parameters

Category: Diamond Disc
Warranty: 2 years (Company 1 year)
Weight: 0.1 kg
? Průměr: 125, 115
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