A item which is used on a regular basis. For example, a hammer would be a common tool for a builder.
Not very common.
Feathering
A protractor is the common tool used in mathematics for measuring and drawing angles.
Stones
Ruler.
Not knowing the intended purpose of the tool is very common !
Not knowing the intended purpose of the tool is very common !
Drill, brace, morticer, auger, hole-punch and a non-common tool a Awl
Hammers and chisels are common stone carving tools.
Not knowing the intended purpose of the tool is very common !
spade
S/mime