Light weight

Greater holding power

Minimum warping

Minimum shrinkage

Smoothing for groove surface

Smoothing for curves surface

Smoothing for convex surface

Smoothing for rough surface quickly

Grain direction

Uneven direction

Bevel direction

Inclined direction

Size of disc

Gauge of abrasive

Thickness of abrasive

Correct grade and type

Quick constructed

Fire resisting property

Prevent the terminals

Prevent the decay