რკინის ბურღი D6,9მმ
Suitable for machine type | Drill Cordless screwdrivers Pedestal drilling machine |
Material to be processed | Steel Cast iron |
Quality | ZEBRA-Premium |
Standard / drilling depth | DIN 338 / 5xD |
Diameter (Ø) | 6.9 mm |
Length (l1) | 109 mm |
Chip flute length (l2) | 69 mm |
Shank style | Cylindrical |
Surface | Vaporised |
Cutting material | HSS |
Type | RN |
Angle of the tip | 130 Degree |
Service life (points system) | 3 of 4 points |
Drilling speed (point system) | 3 of 4 points |
Bore hole quality (point system) ( ) | 4 of 4 points |
Versatility (points system) | 2 of 4 points |
Drilling behaviour (point system) | 3 of 4 points |
Suitable for drill (points system) | 3 of 4 points |
Suitable for cordless drills (points system) | 3 of 4 points |
Suitable for upright drilling machine (points system) | 3 of 4 points |
Suitable for milling-drilling centre (points system) | 1 of 4 points |
Self-centring | Yes |
Suitable for tensile strength up to | 850 N/mm² |
Material sub-group | General structural steels Non-alloyed tempering steels Cast iron Ductile iron Malleable cast iron Magnesium alloys Copper, low-alloyed Brass, short-chipping Brass, long-chipping Plastics, duroplastic Plastics, thermoplastic |