Step drills and countersinks
Step drill
HERMAN DM-60 HSS
For thin-walled materials
Smooth drilling of holes of several diameters with one drill in thin-walled materials
Stepped drill bit set
HERMAN QDM-60 HSS
3 drill bits in set
Set of HERMAN DM-60 HSS stepped drill bits : Ø 4-12, 4-20, 4-30 mm
Countersink
HERMAN DM-70 HSS
Conical, DIN 335 C, 90°
Precise deepening and cleaning of holes in steel, non-ferrous metals, cast iron, etc.
Countersink set DIN 335 C
HERMAN QDM-70 HSS
6 pcs countersink in set
Set of HERMAN DM-70 HSS countersinks : Ø 6,3; 8,3; 10,4; 12,4; 16,5; 20,5mm