4mm Jobber Drill Bit – Black Series

Alpha Black Series 4.0mm Jobber Drill Bit

DRILL FEATURES

  • Tempered black oxide finish reduces friction between bit and workpiece
  • 118° split point for precision hole starting
  • Fully ground premium quality M2 HSS
  • Corrosion resistant finish
  • Ideal for drilling hard metals (coolant recommended)
  • Not recommended for soft materials or non-ferrous metals
  • Available in common metric, imperial and panel/stub sizes.
SKU: 9LM040B
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Technical Specs

Type of Measure
Metric
Diameter (mm)
4.0000
Series
Black
Flute Length (mm)
43.0000
OAL (mm)
75.0000
Subcategory
Jobber Metric
Angle (deg)
118.0000
Material
M2 HSS