Drill 42.00x360x555 mm Taper shank MORSE 4 HSS EXTRA-LONG Serie 2 DIN1870RN ZV5001 STIMZET

Extra long drills are recommended for deep-hole drilling by means of jig bushes of parts made of unalloyed or alloyed steel, cast steel up to 900 N/mm2, grey-, melleable- or nodular cast iron, sintered steel etc.

It is necessary to prevent form flute-stopping by frequet withdrawing the drill.

It is necessary to reduce the recommended cutting conditions regarding to the insufficient supply of the cutting fluid.

λ = 25°÷30° ε=118°