porraspora

ø1: 4.0mm, ø2: 20.0mm, steps: 9 (90° ─ 2mm), ø3: 6.35x27mm ─ 1/4" hex shank, L1: 81mm, The CBN ground and spiral flutes: quiet running and high cutting performance, optimized chip flow protects the cutting edges and reduces built-up edges and cold weld marks: even long non-breaking chips will be removed easily, cone makes it easier to withdraw the tool from the materiaali
HSS-TiN
TiN-coating: wear resistant titanium nitride coating: increased hardness, very low friction coefficient, optimal service life, split point, cooling is not necessary, but recommended
koko/size: 1