Diamond Cutting Grinding Disc 9ft (230mm) - Double Side Coated

Our review of the Diamond Cutting Grinding Disc 9' (230mm) focuses on professionals and serious DIYers who need a durable, fast-cutting wheel for stone and tile work. The bottom line: this SANLEETEK disc is built to perform on granite, marble, ceramic, porcelain tile and engineered stone because of its full electroplated diamond face and double-sided triangle coating, which together deliver aggressive material removal and extended life compared with simple plated wheels.

Key Features

• 9' Diameter: The large 230mm size covers more surface area so each pass removes more material for faster progress on large tiles and slabs.
• Double Side Coating: Electroplated diamond and triangle spots on both faces provide consistent cutting and grinding when the wheel is used edge to edge.
• #40/50 Grit: The medium-coarse grit balances cutting speed and finish, making it suitable for shaping and rapid material removal on stone and porcelain.
• 2.8mm Diamond Thickness: A substantial diamond layer improves durability under heavy use and helps the wheel maintain cutting performance over time.
• 5/8'-11 Thread Fit: Threaded arbor makes it compatible with most angle grinders and simplifies installation and removal.
• Wet or Dry Use: Designed for both wet and dry operation so users can choose the method that suits the job and dust control needs.

Who It's For

This disc is aimed at stone fabricators, tile installers and serious renovators who need a robust abrasive for shaping and cutting hard materials like granite, marble, porcelain tile and quartz. Its electroplated construction and double-sided coating suit continuous on-site work where downtime and frequent wheel changes are costly.

It is less appropriate for hobbyists with only occasional light cutting needs or for jobs that require a very fine polished finish; in those cases a finer grit or a segmented rim blade tuned for delicate edge finishing will be a better fit.

Pros & Cons

Pros

• Very aggressive cutting and grinding due to full electroplated diamond exposure for faster material removal.
• Double-sided triangle coating extends usable life by allowing usage of both faces and improving balance.
• Threads onto standard 5/8'-11 angle grinders for wide compatibility and easy changes.
• Works in wet or dry conditions, offering flexibility on job sites with different dust controls.

Cons

• Medium-coarse #40/50 grit is not intended for fine polishing, so a secondary finishing wheel is required for smooth edges.
• Recommended speed and actual performance depend on the operator and grinder; users should adhere to the 4000 RPM recommendation and not exceed 6500 RPM.

Specifications

Diameter	9' (230mm)
Diamond Thickness	2.8mm
Grit	#40/50
Thread	5/8'-11
Application	Granite, marble, ceramic, porcelain tile, quartz, artificial stone
Use	Dry or wet cutting and grinding
Recommended Speed	4000 RPM (max 6500 RPM)

Our Verdict

The SANLEETEK 9' double side electroplated disc is a strong choice for professionals who need fast, repeatable cutting and grinding on hard stone and tile. It offers good value for heavy use because of the thick diamond layer and reversible coating, though users needing finished edges will still need a finer polishing wheel after rough shaping.

Frequently Asked Questions

Can this wheel be used wet?
Yes, it is designed for both wet and dry cutting and grinding to suit different jobsite conditions.

What machines fit this disc?
It fits angle grinders with a 5/8'-11 threaded arbor; check grinder speed and do not exceed 6500 RPM.

Is this grit suitable for final polishing?
No, the #40/50 grit is for aggressive removal and shaping; use a finer grit or polishing sequence for final edge finish.