Designed for professional use: drilling in high-grade stainless steel, structural steel, INOX and cold-rolled steel. • HSS steel provides several times faster drilling and maintains resistance to damage and dulling, maintaining drill geometry• cross-blade „split point” with an apex angle of 135° allows drilling without prior scoring, guaranteeing perfect centering• dissipate heat quickly when drilling in hard steels, without burning the drill bits• grinded surface and edges to Di N 338 standard ensure excellent drilling precision and ideal dimensions of the drilled hole• lower coofriction factor reduces the adhesion of swirlsoros and filings to the drill bits• made from a single piece of HSS 6542 steel, making them strong and durable• 1/4" HEX shank (6. 3 mm) for drilling into high-grade stainless steel, structural steel, INOX and cold-rolled steel
