. Solid Carbide NC Spotting Drill, 5 mm, 90 Deg, Spiral Flutes, Uncoated Exactly central ground point. Through-coolant: no Shank: DIN 6535 HA to h6 Flute length Lc: 13 mm Overall length L: 50 mm Shank dia Ds: 5 mm Feed f in steel Easy spot drilling and high shape accuracy of the center hole. Sturdy due to short flutes.