Diamond Glass Cutting Disc 3pcs 3in Cut Off Wheel - Fast Glass & Tile

In this review the focus is on a compact diamond cutting disc set aimed at hobbyists and light tradespeople who work with glass, ceramic tile and marble. The three-pack of 3in blades impressed for quick, clean slicing of thin material and for use on mini angle grinders with a 3/8' arbor; the single biggest reason to buy is the combination of an ultra-thin 1.3mm body and 10mm diamond height that balances fast cutting with reduced chipping when used with water. The review reflects hands-on observations of cutting performance, handling and durability in typical small shop and renovation tasks.

Key Features

• Size and fit: The 3in diameter and 3/8' (10 mm) bore make these discs simple to mount on most mini angle grinders and compatible machines, so changeover is quick.
• Thin cutting profile: At 1.3mm thickness the ultra-thin blade produces narrow kerfs that reduce waste and help make precise cuts in glass, tile and marble.
• Diamond grit and height: The #100/120 grit with 10mm diamond height cuts fast while still offering good wear life for repeated small jobs.
• Dry or wet use: The blade runs dry for convenience but benefits from wet cutting, which noticeably prolongs life and reduces dust and edge chipping.
• Thermal and noise performance: High temperature resistance and lower noise levels were observed during medium-duty cuts, making the discs comfortable for handheld work.
• Durability and safety: The construction felt robust with a focus on higher hardness and toughness, giving confidence in safety when used at recommended RPMs.

Who It's For

These diamond discs are best for DIYers, tile installers doing detail cuts, and craft workers who need a compact blade for glass, ceramic tile, marble, jade or crystal. The set of three gives a small workshop enough spare blades for repetitive small jobs or to keep one blade for wet use and another for dry work.

Those doing heavy industrial cutting, very thick stone slabs, or who require high-volume production should look for larger diameter industrial blades; this 3in disc is optimized for precision and portability rather than high throughput on large workpieces.

Pros & Cons

Pros

• Fast, clean cuts in glass, tile and marble due to the thin 1.3mm kerf and fine #100/120 diamond grit.
• Versatile for dry or wet use so users can prioritize convenience or blade longevity as needed.
• Compact 3in size and 3/8' arbor fit most mini angle grinders for easy swapping and portability.
• Durable construction with good heat resistance that reduces noise and improves handling on small jobs.

Cons

• Not intended for large slabs or heavy production cutting; users should limit expectations to light-to-medium tasks.
• Requires careful slow cutting and water to avoid chipping on delicate items such as thin crystal.

Specifications

Diameter	3in (75mm)
Thickness	1.3mm
Diamond height	10mm
Bore	3/8' (10 mm)
Diamond grit	#100/120
Recommended RPM	11000 (max 19000)

Our Verdict

This three-pack of 3in diamond cutting discs is a smart pick for hobbyists and tradespeople needing precise, low-waste cuts in glass, tile and marble. It offers a useful balance of speed, durability and versatility for handheld mini grinders, and provides solid value when used with water and at recommended speeds for longer life.

Frequently Asked Questions

Can these blades be used wet?
Yes. They work dry but wet use is recommended to extend blade life and reduce chipping and dust.

Will this fit my mini angle grinder?
The disc has a 3/8' (10 mm) bore and is intended for mini grinders and machines that accept that arbor size.

What materials will it cut?
Designed for glass, ceramic tile, marble, jade, crystal and even wine bottles when cut carefully and slowly.