Drill 2.5mm for metal R9

Metal drill R9 2.5 mm

Metal drills made of high speed steel R9 according to DIN 338 are designed for drilling holes in especially strong high-alloy metals with a density up to 1000N/mm, as well as stainless, refractory and acid-resistant steels . By adding cobalt and other alloying elements to the composition, the red hardness of the drill is significantly increased.