The best 100mm 4 inch diamond grinding cup wheel for granite for angle grinder

This type of turbo diamond grinding cup wheel is designed to remove uneven spots and profiling edges on granite, marble and natural stone. The cup wheel base is aluminium, and all cup wheels are custom balanced for accurate performance, with no bounce or chatter that can cause chipping.

 

In fact, the turbo diamond segments on diamond grinding wheels can have different diamond grits, bonds, diamond quality and diamond concentrations to fit diverse use cases. After many times test, we have the best formular for the granite grinding. The basic rule of thumb with the concentration of the diamond is that for harder materials to be ground, the higher the concentration desired and vice versa. Diamond grinding cup wheel is used in different-roughness grindings. For coarse grinding, the quality of the diamonds' has to be higher, as abrasives are more prone to become blunt. The diamond grit should be lower, normally from grit 35 to 50 grit. For fine grinding, also referred to as "polishing", the quality of the diamond can be comparatively lower because less force of friction and the longevity of the diamond can be much longer with better precision. In such cases the diamond grit is usually between 80to 120, based on the grinding requirements.

 

Diameter: 4" /100mm

Arbor: 5/8"-11 ,M14 or 22.23mm

Equipment: Angle grinders

Grinding Method: Wet or dry

Grit: Coarse, Medium and fine 

Welding Method: Hot Press, silver welding