Hole cutters TCT (Tungsten Carbide Tipped) complete with fixed chuck, usable with portable drills and column drills with manual feed, complete with pilot tip and spring for ejecting scrap. Applications: Making through holes on steel sheets, tubes and profiles with a thickness of up to 4 mm, AISI 304 and AISI 316L stainless steel up to 2 mm, light alloys, fibreglass, hard plastics and sandwich panels. The use of cutting oils is recommended.