Product specification

Cobalt jobber drill HSSCo, 2907 T1000, 9,1X125/81

more info
Ø D9,1 mm
L125 mm
l81 mm
Helix Angleλ = 35°÷40°
Point angleε = 128°
Material
HSSCo -super high-speed steel 5% Co (HSSE)
Usage
High-efficient drills with higher thermal stress resistance are recommended for drilling of parts made of hard-to-machine materials, alloyed steel and cast steel, especially for drilling of cold- or hot-work tool steel, rolls for rolling mills, head-treatable or carburizing steel, stainless steel.
Manufacturing ModeV – ground from solid
Surface Treatmentwithout treatment
Grinding Mode
Form C – conical lip relief, split point - form C

Attachment: