Introducing the DeWalt Extreme Metal Diamond edge blade using the same technology used with the Le...Introducing the DeWalt Extreme Metal Diamond edge blade using the same technology used with the Lenox METALMAX wheel who are also part of the SBD Dewalt Group. The Extreme Diamond Edge is the new alternative to abrasive cut off wheels, delivering more than 1000 cuts with no need for wheel changes. That is 30 times longer life than thin bonded cut off wheels. Recommended for multiple types of metal including steel, sheet metal, stainless steel, rebar, cast iron, aluminum and non-ferrous metals. When cutting aluminum, it is recommended to apply cutting wax or other type of saw lubricant to avoid chip welding. Designed for use in the same power tools as bonded abrasive wheels, at the same RPMs and feed forces. No changes in operating settings are required. Use this EXTREME Metal blade as you would a bonded abrasive wheel. Features: Longer Life - Advanced diamond technology provides extreme durability in metal cutting applications, leading to increased productivity, reduced downtime, and a lower cost per cut compared to thin bonded cut-off wheels. Diameter Retention - The blade is made with diamonds, so it doesn't get smaller. The cutting depth stays the same throughout its life, meaning better control, reach and precision. Safety - Made with a solid steel body that is stronger to greatly reduce the risk of breakage. Less Dust Residue - Generates less odor and dust residue as the wheel does not wear down like bonded abrasives. Visible sparks originate only from the material being cut. One Wheel Multiple Materials - Recommended for multiple types of metal including steel, sheet metal, stainless steel, rebar, cast iron, aluminum and nonferrous metals. 1 x DEWALT DT40251 Extreme Diamond Metal Cutting Disc 115 x 22.23 x 1.3mm. DeWalt DT40251 EXTREME Diamond Disc 115 × 22.23 × 1.3mm. The DeWalt DT40251 EXTREME Diamond Metal Cutting Disc delivers exceptional durability and efficiency for cutting various metals. This diamond disc boasts a significantly longer lifespan than standard abrasive cut-off wheels, providing 1000+ cuts. Its robust construction minimizes breakage risk, and the diamond edge maintains its diameter until the very last cut, reducing dust and improving your workspace. Compatible with corded and cordless angle grinders, this versatile disc is ideal for a wide range of applications. Features: Achieves 1000+ cuts – 30 times longer life than thin bonded cut-off wheels. Enhanced safety due to its solid steel construction, greatly reducing the risk of breakage. No shelf life: Unlike bonded abrasives, it won't expire under proper storage conditions. Maintains its original diameter until the final cut. Substantially reduces airborne dust particles. Versatile cutting capabilities across various metals including steel, stainless steel, cast iron, rebar, sheet metal, aluminum, and non-ferrous metals. Specifications: Diameter: 115mm Bore Size: 22.23mm Thickness of Diamond Segment: 1.3mm
The DeWalt Extreme Metal Diamond Disc is designed for professionals and DIY enthusiasts who need a long-lasting, efficient solution for cutting various metals. This diamond-edged blade offers significantly extended lifespan and exceptional durability, enabling over 1000 cuts – a key benefit compared to standard abrasive wheels. However, while versatile, using lubricants is recommended when cutting aluminum to avoid chip welding.
All features
Model Part Number
DT40251-QZ
Brand
DeWalt
Extended Product Information
FAQs
How long does the DeWalt Extreme Metal Diamond Disc last?
It provides 30 times longer life than thin bonded cut-off wheels, enabling 1000+ cuts.
It is designed for use in the same power tools as bonded abrasive wheels, at the same RPMs and feed forces; no special tools are required.
Do I need to change any operating settings on my angle grinder?
No, no changes in operating settings are required; use it as you would a bonded abrasive wheel.
What safety precautions should I take?
Always wear safety glasses, gloves, and a dust mask. Ensure the disc is properly installed and the work area is clear.
How do I store the disc?
Store the disc in a dry place, away from extreme temperatures and moisture.
Can I use this disc on a cordless angle grinder?
Yes, it is compatible with both corded and cordless angle grinders.
Troubleshooting
The disc is cutting slowly or with difficulty.
Check the material being cut; ensure the disc is appropriate for the metal. Consider using cutting wax or lubricant, especially when cutting aluminum.
Excessive sparks are produced when cutting.
Ensure the correct feed force is being applied. Check the blade's condition; if worn, replace it.
The blade is not fitting properly on the grinder.
Verify the disc's bore size matches the grinder's arbor size (22.23mm). Contact DeWalt support if the issue persists.
Pros and Cons
Pros
Significantly longer lifespan than traditional abrasive wheels.
Cuts through a wide variety of metals.
Maintains cutting depth throughout its life.
Reduces dust and odor compared to abrasive wheels.
Enhanced safety with solid steel construction.
No shelf life, ensuring it's ready when you need it.
Cons
Requires the use of cutting wax or saw lubricant when cutting aluminum.
Initial cost may be higher than traditional abrasive wheels.
Not ideal for all cutting tasks; best suited for metal applications.
May require more initial force to cut through thicker materials.
Setup, Compatibility & Care
Compatibility: The DeWalt Extreme Metal Diamond Disc is compatible with any brand of angle grinder, provided the grinder supports the disc's dimensions (115mm diameter, 22.23mm bore).
Installation:
Ensure the angle grinder is unplugged or the battery is removed.
Remove the existing wheel and any associated hardware.
Carefully install the DeWalt Extreme Metal Diamond Disc, ensuring it is properly centered.
Secure the clamping nut, following the grinder's instructions.
Operation:
Always wear appropriate safety gear, including eye protection, gloves, and a dust mask.
Allow the blade to reach full speed before making contact with the material.
Apply consistent, controlled pressure.
For aluminum, use a cutting wax or lubricant.
Care:
Store the disc in a dry environment to prevent damage.
Inspect the disc before each use for any signs of wear or damage.
If the disc becomes clogged, clean it with a wire brush or a dressing stone.