Description
HSS step drill With Helical Flute
Cross sharpening ,thanks to the deep helical flute, vibrations are eliminated and cutting performance is significantly improved. Chip jamming and clogging problems are eliminated. Long chips are evacuated particularly well like with a drill bit. The chamfer makes it easier to remove the drill during through-hole drilling.
Drilling depth : 4mm thick
Size: 7
Drill Range: 5.0 – 28.0 mm
Net weight: 0.086 kg
Length: 69.0 mm
