Drills, Drills centering combined
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Technical characteristics
- Type of drill bitCentral
Description
The combined centering drills in accordance with GOST 14952-75, for processing of center openings in accordance with GOST 14034-74.
¾ Type A - drills for centering openings 60 ° without safety cone.
¾ Type B - drills for centering openings of 60 °C a safety cone 1
¾ Each type of drills is made in two executions defined parameter
roughnesses of surfaces.
¾ Material - P6M5 quick cutting steel
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Drills, Drills centering combined
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