Jobbers Drill
VIKING 3/16 240-UB Ultra Bor Super Premium HSS Heavy Duty Jobbers Length Drill

Jobbers Drill

Made In The USA
Item #: 01-910-025
Size Type: Fractional
Drill Point Angle: 135°
Tool Material: Premium High Molybdenum M2 High Speed Steel
Cutting Direction: Right Hand

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Designed for series 300 stainless steel, except for 303


  • Much tougher than cobalt steel.
  • 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.


  • Outperforms cobalt drills in work hardening stainless steel applications.


  • Manufactured to NAS 907B specification.
  • Nito-carburized flute has an increased rockwell hardness.
  • Rich amber color.


Number & Letter Sizes Also Available, Please Call
Product Specifications
Size Type Fractional
Drill Point Angle 135°
Tool Material Premium High Molybdenum M2 High Speed Steel
Cutting Direction Right Hand
Application Drilling series 300 stainless steel except for 303
Decimal Diameter .1875"
Decimal Size .1875"
Diameter 3/16"
Drill Grade Heavy Duty
Drill Type Jobbers Length
Flute Length 2-5/16"
Flute Shape Standard Spiral, Helical Flute
Hardness 58 to 60 RC
Helix Angle 30°
No. of Flutes 2
Length Style Jobbers Length
Overall Length 3-1/2"
Point Sharpening Type Split Point
Package Qty 12
Series 240-UB
Shank Style Straight Shank
Quantity Break 0
Type Jobbers Drill
weight 0.02 lbs

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