can it be used on a DeWalt angle grinder for carbide sharpening?

Yes,it can but please confirm its size is 4.5" before you use it. Usually this grinding disc can be used in any 4.5" angle grinder.

I have arbors from previous purchases. Can I order the disc alone and use the arbors I have?

If the new one has the same diamater and with 4screws it should fit. But not sure if you try to fit this disc with other arbors.

Can this be used for grinding steel and how long will it last?

No, this kind of diamond wheels are designed for fast cutting shaping and grinding stone marble granite concrete tiles. They are not designed for metal and steel.

What RPM is this rated to?

This diamond wheel is for angle grinder. The recommended is 8063, the maxmum rpm is 13300. Notice, this is a save money tool, because it could cutting grinding and shaping for porcelian tile stone marble granite concrete with only a tool.

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Description

💎 Cut Fast, Grind Smart — Own Every Edge!

UNIVERSAL FIT - Seamlessly fits any angle grinder with a 5/8-11 arbor, making upgrades effortless.
DUAL SIDED EFFICIENCY - Double-sided vacuum brazed design doubles your productivity with aggressive cutting and grinding on both sides.
MULTI SURFACE MASTERY - Perfect for shaping, beveling, rounding, and removing coatings or deep scratches on stone and tile surfaces.
LONG LASTING DURABILITY - Vacuum brazed diamonds outlast electroplated discs, ensuring extended tool life and fewer replacements.
PRECISION DIAMOND GRIT POWER - Experience rapid, clean cuts and smooth finishes on marble, granite, and concrete.

The SHDIATOOL 4.5-inch diamond cutting and grinding disc features a robust 40/50 diamond grit with a double-sided vacuum brazed design, delivering fast, aggressive cutting and grinding on stone, marble, granite, concrete, and tile. Engineered for durability and compatibility with standard 5/8-11 arbor angle grinders, it excels in shaping, beveling, and smoothing tasks while outlasting traditional electroplated discs.

Specifications

Grit Material	Diamond
Product Dimensions	4.5"L x 4.5"W
Brand	SHDIATOOL
Compatible Devices	Angle Grinder
Grit Type	Coarse
Arbor Hole Diameter	0.63 Inches
Item Thickness	2.4 Millimeters
Grit Number	40
Construction Type	Grinding
UPC	718760496628
Manufacturer	SHANGHAI DIATOOL CO., LTD.
Part Number	A85001F5/8
Item Weight	7.7 ounces
Item model number	A85001F5/8
Is Discontinued By Manufacturer	No
Size	115mm(4-1/2 In.)
Color	Grey
Style	Double Sided
Material	Artificial Diamond
Power Source	Corded-electric
Item Package Quantity	1
Number Of Pieces	1
Batteries Included?	No
Batteries Required?	No

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