5-in-1 Drill Bit

This stainless steel nail are multifunctional with a 5-in-1 function. From the top to the base the coarseness of the drill bit will be different. The top of the drill bit will have finer toothing, the middle will have medium toothing and the base will be coarser toothing. The drill bit also rotates in two directions. 

The 5-in-1 drill bit is available in 5 various drill bits with each their own coarseness. The bits have a different color that correlates to their coarseness: 

Yellow = extra fine
Red = fine
Blue = medium
Green = coarse
Black = extra coarse