Karnasch Step Drills Karnasch Step Drills Made of HSS-XE steel and spiral fluted with split point and are designed to drill perfectly round holes in sheet metals of an thickness up to 4mm. The transition from one step to the next perfectly deburrs the previously drilled hole. Step drills are therefore a drilling and deburring tool combination. This versatile tool combines different drills with diameters of 4-30 mm. The radius transition simultaneously bezels or deburrs the bore holes. The drills are axial-radially relief grounded and can be resharpened at the tooth face. HSS-XE steel Made of high-alloyed special steel „XE“ for considerably longer service life than HSS-Steel. The deep-ground flutes with 3 cutting edges guarantee extremely smooth running, noticeable softer cutting and high cutting performance. Excellent for thin sheet metal. Variation Quantity discounts available to trade: 1-4 | 5
