Ø D | 9,0 mm |
L | 250 mm |
l | 175 mm |
Weight | 0,084 kg |
Helix Angle | λ = 35°÷40° |
Point angle | ε = 118° |
Material | HSS – high-speed steel |
Manufacturing Mode | V – ground from solid |
Usage 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 900N/mm², grey-, malleable- or modular cast iron, sintered steel etc. It is necessary to prevent from flute-stopping by frequent withdrawing the drill. It is necessary to reduce the recommended cutting conditions regarding to the insufficient supply of the cutting fluid. |
Surface Treatment | without treatment |
Grinding Mode Form C – conical lip relief, split point - form C |
Note | PROFI tools |
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