Always read instruction first 

wear safety eyewear 

keep your head and other parts of your body aways from the working area path

carful at electricity check the cord the outlet and the switch 

do not use damge , broken ,missing peice ,frayed,bent or defect tools

do not work at area has no safety 

sharp object should be handle with extra care 

make a plan to assign area ,time and project details to be done 

store it in a proper genirous space