ultra steel twist drill bit
ultra steel blue-ring HSS twist drill bit, DIN 338, 6.8 mm
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Twist drill bit with TRICON shank, short, type N, right-hand cutting, split point, DIN 338, HSS
Field of Application:
Precision drill bit for drilling steel up to 1,000 N/mm² and cast steel (alloyed and unalloyed), grey cast iron, malleable iron, spheroidal graphite iron, sintered iron, nickel silver and graphite.
Advantages:
- 118° cutting edge with split point
Precision tapping - no centre punching; precise dimensional accuracy - accurate drill holes; low feed rate and cutting forces - energy-saving operation
- Blue ring - for steel
Simple material allocation - no mix-ups; suitable for machine taps and countersinks
- Oxide heat treatment, copper/plain
Reduced thermal load on the drill bit
Oxide-treated drill bit bevel for maximum service life
- TRICON shank for mechanical-interlock power transmission
No spinning in the drill chuck - optimal power transmission/no groove formation; excessively deep clamping in drill chuck is avoided - optimal elasticity; low energy expenditure when opening and closing the drill chuck - protects your drill chuck
Advice:
From 4.0 mm with TRICON shank
Datasheets(X)
Diameter | 6.8 mm |
Length | 109 mm |
Chip flute length | 69 mm |
