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Viking 135 Ultra Bor Super Premium H.S.S. Heavy Duty Jobbers Drill, Size N, .3020 Decimal Size, 3-1/16 Flute length, 4-3/8 Overall Length

$7.16 $8.95
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Travers Catalog Items yes Viking 135 Ultra Bor Super Premium H.S.S. Heavy Duty Jobbers Drill, Size N, .3020" Decimal Size, 3-1/16" Flute length, 4-3/8" Overall Length H.S.S. - High Speed Steel Designed for series 300 stainless steel, except for 303 2 Flute



SKU: 01-910-211 Category:
Travers Catalog Items yes

Viking 135 Ultra Bor Super Premium H.S.S. Heavy Duty Jobbers Drill, Size N, .3020″ Decimal Size, 3-1/16″ Flute length, 4-3/8″ Overall Length

  • H.S.S. – High Speed Steel
  • Designed for series 300 stainless steel, except for 303
  • 2 Flutes
  • Industry Standard: 240-UB
  • Much tougher than cobalt steel.
  • Hardness: 58 to 60 RC
  • Thin web design penetrates work hardening stainless steel fast enough to continually cut beneath the chip which is hardening from deformation.
  • 135 split point design stops drill walking, holds tighter hole size and takes a smaller chip resulting in less heat.
  • Low temperature stress relief improves lubricity and toughness.
  • Flute Shape: Standard Spiral, Helical Flute
  • Cutting Direction: Right Hand
  • Helix Angle: 30
  • Ultra Bor Super Premium drills are made of special Hi-moly tool steel, which is much tougher than cobalt steel.
  • Heavy-duty Jobbers length twist drills.
  • Premium grade high-speed steel construction.
  • Lower helix angle of 30 wraps slowly and is used in drilling hard materials.
  • Two-flutes design with straight body shank.
  • Manufactured to NAS 907B specification.
  • Nitro-Carburized flute has an increased rockwell hardness.
  • Rich amber color.
  • 135 split point geometry (over 1.5mm).
  • Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics
  • Country of Origin: U.S.A.

For More Viking 135 Ultra Bor Super Premium H.S.S. Heavy Duty Jobbers Drills – Letter Sizes Click Here

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