1 grinding/mill diameter: Φ3-Φ13mm
2 point angle: 90 °-145°
3 Power Supply: AC 220V / 50Hz
4 Power: 0.25KW
5 speed: 4400r/min
6 Diamond grinder wheel: diamond wheel diamond CBN230# (for white steel material drill only)
7 Collet Range: ER20  Φ3-Φ13mm,total 11pcs
8 Dimensions: 242(L) × 127 (W) × 127 (H) mm
9 Weight:9.5Kg(about 20.9lbs) 

It has such parts:

Standard ER20 collet  11pcs( Φ3-Φ13mm)

Collet Holder   1set(next to the red power switch)

Hexagon Wrench  1 set

Power cord  1pcs