• QMPN: VIK 49300
  • MPN: 49300
  • UPC: 05072849300
  • Min. Order Qty: 1
  • Qty. Interval: 1
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The ultra Bor high speed steel drill is designed to outperform cobalt drills in work hardening stainless steel applications. The ultra Bor's performance advantage is the result of the material it is produced from and the construction of the drill. These ultra Bor high speed steel drills are produced from a special hi-moly steel and then the flutes are nitro-carburized, which is a hardening process at low temperatures to minimize any distortion. The combination of hi-moly steel and nitro-carburized flutes allows the drill to have a thinner web compared to a cobalt drill. A thinner web means the ultra Bor drill will penetrate the work hardening steel fast enough to continually cut beneath the chip which is hardening from deformation, meaning the drill is cutting softer material. These high speed steel drills also feature a flatter point to produce smaller chips, meaning all the torque is directed to a smaller area allowing for drilling of materials with a hardness over 30 on the Rockwell "C" scale. The smaller chips also means the drill these drills run at cooler temperatures as there is less friction.

V® Jobber Length Drill, Super Premium Ultra Bor, Series: 643-UB, Metric, 4.3 mm Dia, 83 mm Overall Length, 54 mm Cutting Depth, 2 Flutes, 54 mm Flute Length, 135 deg Point, Split Point, HSS Cutting Edge, HSS Material, Gold Surface Treated

Cutting Depth      :      54 mm
Cutting Edge Material      :      HSS
Diameter      :      4.3 mm
Drill Diameter Measurement System      :      Metric
Finish      :      Gold Surface Treated
Flute Length      :      54 mm
Material      :      HSS
Number of Flutes      :      2
Overall Length      :      83 mm
Point Angle      :      135 deg
Point Type      :      Split
Series      :      643-UB
Type      :      Super Premium Ultra Bor
  • 135 deg split point provides fast penetration and accurate starting without a center punch|Withstands substantially higher drilling temperatures while maintaining sharpness

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