Pack of long twist drills DIN 340 type N HSS milled-ground

Long series high performance drill.
Suitable for deep holes.
High resistance to breakage. To make deep holes it is necessary small advances of the drill and remove chips. Grinding in the shape of a conical point.
Cutting angle: 118º.
Spiral angle: 20-30º.Ø-tolerance: h8.
Glossy surface.
Right cut Applications: for steel and cast steel, alloyed and unalloyed (up to a strength of ca.
900 N / mm²), gray cast iron, malleable cast iron, nodular cast iron, pressure cast iron, sintered iron, nickel silver, graphite cast iron, aluminum alloys, bronze and brass. Translucent plastic case with blue background label.