Unplug the tool form electric outlet before loading a bit
Press shaft lock button, use the collet wrench to loosen the collet nut.
Insert the bit, and tighten the collet securely.
But avoid excess tightening of the collet nut and never use the damaged bit.
There is an off/on switch. When the switch is on, the tool runs at 20,000rpm.
There is a switch indicator with an orange line on it.
Slide the switch to find the speed needed form 18000 to 20000rpm.
Slide the switch to black dot for complete stop.
When finished, turn off the tool and unplug it.
Collets type: 2.4mm
Voltage: AC 100-240V (US plug) 50/60HZ
Variable speed control: 18000 RPM up to 20,000 RPM
Dimension: 158mm x 20mm
Net weight: 160g
1 x Electric nail drill machine
6* grinding head
6* sand ring
1 x User manual (in English) not include box.