Can this convex grinding wheel be used to remove thick rust on iron or flatten steel weld seams?

Yes. While it excels at granite shaping, the vacuum brazed tech and #30/40 grains allow this convex disc to effortlessly grind heavy rust, zinc coatings, and tough steel welds without clogging. Perfect for mixed-material jobsites.

What size arbor hole does it have? Will it fit my angle grinder?

It features a universal 7/8"(22.23mm) arbor to fit standard grinders. Note: The 4" disc includes an extra washer to fit 5/8" spindles too. Please select your matching disc diameter (4", 4.5", or 5") based on your grinder guard size.

Is this grinding wheel flat or convex?

It has a unique convex (curved "flying saucer") profile. Unlike flat wheels, this convex shape gives you maximum control for stone grooving, curved contouring, artistic carving, and smoothly shaving down uneven surfaces.

Does it emit strong odors or a storm of sparks?

No. Compared to ordinary resin wheels, our vacuum brazed diamond technology drastically reduces friction. This results in significantly fewer sparks, cooler grinding, and absolutely no harsh odors—making your workspace safer.

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SHDIATOOL 4 - Inch Diamond Grinding Wheel for Granite Marble Iron Steel Masonry Cup Grinding Disc 30/40 Grit, Dry/Wet Use, Fits 7/8 Inch Arbor

SHDIATOOL 4 - Inch Diamond Grinding Wheel for Granite Marble Iron Steel Masonry Cup Grinding Disc 30/40 Grit, Dry/Wet Use, Fits 7/8 Inch Arbor

Product ID: 119459000

Details

Brand
SHDIATOOL
Compatible Devices
Angle Grinder
Grit Material
Diamond
Grit Type
Coarse
Product Dimensions
4"L x 4"W

💎Vacuum brazed diamond tech

🔄Dry & wet versatile use

⚙️9072 RPM max speed

$60.99

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Grind smarter, not harder — the pro’s secret weapon for flawless finishes!

BUILT TO LAST - Vacuum brazed technology delivers faster grinding speeds and a longer lifespan than conventional discs.
UNIVERSAL FIT - 7/8 inch arbor with reducer washer included for 5/8 inch shafts—fits most angle grinders effortlessly.
CURVED CONTROL - Unique convex profile offers superior control for stone grooving, contouring, and artistic carving.
SPARK FREE SAFETY - Advanced design drastically reduces sparks and heat, keeping your workspace cooler and safer.
PRECISION MEETS POWER - 30/40 grit diamond ensures aggressive yet smooth grinding on granite, steel, and more.

The SHDIATOOL 4-Inch Diamond Grinding Wheel combines premium vacuum brazed diamond grit with a versatile dry/wet design, fitting standard 7/8 inch arbors. Engineered for professionals and DIYers alike, it excels at precision grinding on granite, marble, steel, and more, while reducing sparks and heat for safer, longer-lasting performance.

Specifications

ASIN	B078XS4Q83
Best Sellers Rank	#153,155 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #215 in Diamond Saw Blades
Brand Name	SHDIATOOL
Compatible Devices	Angle Grinder
Compatible Material	Alloy Steel, Ceramic, Iron, Marble
Construction Type	Grinding
Customer Reviews	4.6 4.6 out of 5 stars (267)
Grit Material Type	Diamond
Grit Number	40
Grit Type	Coarse
Industry Standard Identifier	718760494761
Item Diameter	100 Millimeters
Item Dimensions	4 x 4 x 0.04 inches
Item Dimensions L x W	4"L x 4"W
Manufacturer	SHANGHAI DIATOOL CO., LTD.
Material Type	Artificial diamond and Steel body
Maximum Rotational Speed	9072 RPM
Number of Items	1
Recommended Uses For Product	Grinding
UPC	718760494761
Unit Count	1.0 Count

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$60.99

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.

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TrustScore 4.5 | 7,300+ reviews

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