Step drill 4-20mm 9 TITAN

Step drill made of high-quality HSS steel DIN 1412C with TiN layer, TiN layer increases the resistance and service life of the drill, use: for drilling alloys and steel plates up to 4 mm thick, plastic and wood, wide grooves easily remove drilled material, dimensions: 9 degrees, 4 - 20 mm, diameters are marked on the drill (or package).