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: 368501412

Details

Brand
SHDIATOOL
Compatible devices
Angle Grinder
Grit material
Ceramic Steel
Grit type
Coarse
Product dimensions
10.2L x 10.2W

💎Vacuum brazed diamond tech

💧Dry & wet versatile use

⚙️9072 RPM max speed

€ 40.35

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Grind smarter, last longer — the pro’s choice for flawless finishes!

PRO GRADE VERSATILITY - Perfect for professionals and DIYers tackling granite, marble, iron, steel, ceramic, and masonry.
DUAL DRY WET OPERATION - Optimized for both dry and wet grinding, reducing sparks and enhancing safety on any project.
VACUUM BRAZED DURABILITY - Advanced bonding tech delivers faster grinding and a longer lifespan than conventional discs.
UNIVERSAL FIT FLEXIBILITY - 100mm diameter with 7/8" arbor plus reducer washer for 5/8" shafts—fits most angle grinders effortlessly.
PRECISION GRINDING POWERHOUSE - 30/40 grit diamond ensures aggressive, smooth material removal on granite, steel, and more.

The SHDIATOOL 4-Inch Vacuum Brazed Diamond Grinding Wheel combines cutting-edge diamond grit technology with a robust vacuum brazed bond, delivering high-speed grinding up to 9072 RPM. Designed for dry or wet use, it fits standard 7/8" arbors with an included reducer for 5/8" shafts, making it a versatile tool for professionals and DIY enthusiasts working on granite, marble, steel, iron, ceramic, and masonry surfaces.

Specifications

ASIN	B078XS4Q83
Best Sellers Rank	85,672 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 48 in Cup Wheels
Brand	SHDIATOOL
Compatible Devices	Angle Grinder
Compatible Material	Ceramic, Iron, Marble, Stone
Compatible devices	Angle Grinder
Construction Type	Bonded
Country Of Origin	China
Customer Reviews	4.5 out of 5 stars 82 Reviews
Grit Material Type	Ceramic,Steel,Diamond
Grit Number	40
Grit Type	Coarse
Grit material	Ceramic,Steel,Diamond
Grit number	40
Grit type	Coarse
Industry Standard Identifier	718760494761
Item Diameter	100 Millimetres
Item Dimensions	10.2 x 10.2 x 0.1 centimetres
Item Dimensions L x W	10.2L x 10.2W centimetres
Manufacturer	SHANGHAI DIATOOL CO., LTD.
Material	Steel,Iron,Diamond
Max Rotational Speed	9072 RPM
Number of Items	1
Product dimensions	10.2L x 10.2W centimetres
Recommended Uses For Product	Grinding
UPC	718760494761
Unit Count	1.0 count

Reviews

J**D

Tough and versatile wheel!

Love this grinding wheel. Use it for wood and texturizing metal. Tough blade!

18.10.2025

R**D

Excellent product

I've repired concrete cracks on my driveway. I had to smooth the concrete. This disc is excellent for finishing the repairs.

23.07.2023

D**Y

Wish it was flat instead of curved

Grinding carbide teeth

28.01.2023

J**R

Works great! Does Everything that I wanted!

Works just as represented!

1.06.2023

D**N

Awesome grinding disc!

I use it as the first step when polishing petrified wood cuts very fast and is not too rough 100% worth the price!

26.02.2020

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