HSS DRILL SET 25 PIECES TIN COATED 1 MM TO 13 MM / 0.5 MM

These high quality drills are made of HSS steel, type fully ground drill HSS4341. They are therefore extremely suitable for drilling in steel, cast steel, iron, cast iron, all non-ferrous metals.

 

The drills are also equipped with a TIN (titanium nitride) coating layer. This coating layer is a kind of ceramic material that is very hard, wear-resistant and can handle very high temperatures. This leads to a considerably longer service life of the drill.