Caracteristici tehnice:
Material HSS din otel 4241
Compozitie burghiu:
W: 1,50-2,50
Mo: 0,60-1,20
Cr: 3,80-4,40
H: 0,50-0,70
Greutate 0.28 Kg
Trepte gaurire: 6, 9, 13, 16, 19, 21, 23, 26, 29, 32, 35, 38 mm