Step drill set WESTBERG   4-12/4-20/4-32mm
								- step drill set made of high quality HSS steel
 - for drilling alloys and steel sheets up to 4 mm thick, plastic and wood, wide grooves easily remove the drilled material
 - 4 - 12 / 4 - 20 and 4 - 32 mm, diameters are marked on the drill bit