Will this blade cut cast iron pipe?

it will cut steel but it will wear it out very fast . i am a mason and cut rebar with these blades all the time . not sure about cast iron but softer steel they will cut although they are not intended to be used for that

Will this fit a DeWalt model D28402W?

Yes, you can use this with the DW402 but you need to get the DW4706 Backing Flange. Amazon sells it for $2.99 as an add-on item. You need this flange for any type 1 cutting wheel used on a type 72 grinder (cupped surface disks). BTW, the arbor is 7/8" for disks that don't screw on, and 5/8" threads for those that do screw on. Hence you need cutting disks, like this one, with a 7/8" arbor. This applies for all grinders, not just Dewalt.

Will this fit the cordless dewalt 4 1/2 dcg412? thanks

It will fit any 4 1/2". Cord or no cord is irrelevant.

Will this grid carbide bits?

This a Diamond Saw Blade, its used to cut tile, brick, concrete, Masonry type work. Not intended for cutting metal. I cut tile and concrete with mine.

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DEWALT Diamond Blade for Masonry, Dry Cutting, Continuous Rim, 7/8-Inch Arbor, 4-1/2-Inch (DW4725)

DEWALT Diamond Blade for Masonry, Dry Cutting, Continuous Rim, 7/8-Inch Arbor, 4-1/2-Inch (DW4725)

Product ID: 60497324

Details

Brand
DEWALT
Colour
Multi
Item weight
0.26 Pounds
Material
Blend
Number of items
1
Number of teeth
25

⚡Thinner kerf for faster cuts

💎200x longer diamond matrix life

🌬️Minimizes dust for cleaner work

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Cut smarter, faster, cleaner — the DEWALT edge you deserve!

UNMATCHED DURABILITY - Diamond matrix lasts 200x longer than standard blades, keeping you cutting without interruption.
SPEED MEETS PRECISION - Thinner kerf design accelerates your cuts while maintaining razor-sharp accuracy.
CLEANER WORK ENVIRONMENT - Dust-minimizing technology keeps your workspace pristine and visibility clear.
VERSATILE MASONRY MASTER - Optimized for concrete and masonry, perfect for professional-grade projects.
TRUSTED BRAND RELIABILITY - Backed by DEWALT’s legacy and a 30-day money-back guarantee for peace of mind.

The DEWALT DW4725 4-1/2-inch diamond blade features a high-performance diamond matrix that delivers 200 times the lifespan of conventional abrasives. Its thinner kerf design enables faster, more precise dry cutting of concrete and masonry while minimizing dust for a cleaner job site. Lightweight and reliable, this continuous rim blade is engineered for professional use and backed by DEWALT’s trusted quality standards.

Specifications

ASIN	B0002Q8TIC
Best Sellers Rank	455,194 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,009 in Diamond Blades
Brand	DEWALT
Colour	Multi
Compatible Material	Concrete
Customer Reviews	4.7 4.7 out of 5 stars (8,034)
Global Trade Identification Number	00028877328881
Included Components	DW4725 - 4-1/2 in. High Performance Diamond Masonry Blade
Item Dimensions L x W	11.4L x 11.4W centimetres
Item Type Name	4-1/2IN HIGH PERF MASONRY BLADE CARDED
Item Weight	0.26 Pounds
Manufacturer	DEWALT
Manufacturer Part Number	DW4725
Material	Blend
Model Number	DW4725
Number of Teeth	25
Product Warranty	30-day money back guarantee
Set Name	Single
Style Name	Modern
UPC	028877328881
Unit Count	1.0 count

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