This blade says to use it no faster than 1800 RPM, my Porter Cable saw is 3800 RPM. So does everybody ignore that detail?

NO! Do not ignore that detail! If blade lifespan is important to you then use the 1300 RPM saw that it is designed for. They will last many months and I make thousands of cuts into multiple pieces at a time. If you use the ordinary chop saws intended for high RPM abrasive discs you can count the number of days it will last on your fingers...kind of a shame when they are $125 each and a disc is $10.

Can i use this on a dewalt chop saw that comes with a fiber disk ???? size and rpms match ??????

No, this would not be compatible; Use only TYPE 1 cutting wheels with Chop Saw: https://www.dewalt.com/products/accessories/abrasives/bonded-abrasives?Facet2=Diameter%253b%253b14-s-in%253b%253b14%7C&pageNum=1

What is the maximum thickness of iron rod this will cut? i need to cut 1" square rod.

It will cut 1 inch square solid Rod no problem. The secret to success with this blade is to feed it very very gently especially at the start of the cut. Then gentle pressure and it will cut the metal perfectly.

does this blade have a diamond knockout?

No. The DWA7747 does not have a diamond knockout.

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14-Inch Metal Cutting Blade, Ferrous Metal Cutting, 66-Tooth (DWA7747), Silver

14-Inch Metal Cutting Blade, Ferrous Metal Cutting, 66-Tooth (DWA7747), Silver

Product ID: 4755486

Details

Brand
DEWALT
Color
Multi
Compatible Devices
DeWalt power
Item Weight
4.16 ounces
Material
Titanium
Number of Teeth
66

🔥12% titanium carbide for extreme durability

⚙️66 precision teeth for clean cuts

🛠️Tri-foil braze tip for stress absorption

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Description

⚡ Cut like a pro, last like a legend.

TRI FOIL BRAZE STRENGTH - Reinforced tooth tips absorb stress, delivering unmatched toughness on ferrous metals.
PRECISION CRAFTED 66 TEETH - Engineered for burr-free, ultra-smooth metal cuts that elevate your craftsmanship.
TITANIUM CARBIDE TOUGHNESS - 12% titanium carbide composition ensures long-lasting blade life and superior wear resistance.
UNIVERSAL 1 INCH ARBOR FIT - Seamlessly compatible with DeWalt 14-inch power tools for effortless integration into your workflow.
HEAT DISSIPATING EXPANSION SLOTS - Keep your blade cool under pressure for consistent performance and extended durability.

The DEWALT 14-Inch Metal Cutting Blade (DWA7747) features 66 precision teeth crafted with 12% titanium carbide and a tri-foil braze tip design, delivering clean, burr-free cuts on ferrous metals. Its heat-dissipating expansion slots and stiff plate design extend blade life, while the 1-inch arbor ensures compatibility with DeWalt 14-inch power tools. Rated highly by professionals, this blade is built for durability and precision in demanding metal cutting tasks.

Specifications

ASIN	B0000302QT
Best Sellers Rank	#115,465 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #290 in Circular Saw Blades
Brand Name	DEWALT
Color	Multi
Compatible Devices	DeWalt power tools (14-inch, 66-tooth, 1-inch arbor)
Compatible Material	Metal
Customer Reviews	4.5 4.5 out of 5 stars (379)
Global Trade Identification Number	00028874077478
Included Components	DWA7747 - 14IN 66 Tooth Metal Cutting Blade with 1IN Arbor
Item Dimensions L x W	14"L x 14"W
Item Type Name	14IN 66T H.GA FERR MTL CUT 1IN ARBOR
Item Weight	4.16 ounces
Manufacturer	DEWALT
Material Type	Titanium Carbide
Model	DWA7747
Number of Items	1
Number of Teeth	66
Part Number	DWA7747
Style Name	66-Tooth
UPC	028874077478
Unit Count	1 Count

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$364.90

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

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