Set of 18 taps and 9 dies in plastic box
With tap wrench and die holder.
M1,0 - M1,1 - M1,2 - M1,4 - M1,6 - M1,8 - M2 - M2,2 - M2,5.
A tap, or thread tap, is a screw-shaped tool used to create internal threads.
The process of cutting threads into a drilled hole is called 'tapping'.
It is used to create screw threads.