Precision Twist Drill 5998330 R18 General Purpose Jobber Length Drill Bit, #21 Drill - Wire, 0.159 in Drill - Decimal Inch, 118 deg Point, HSS, Steam Tempered

Jobber Length Drill Bits
55323 MFG #: 5998330
Dormer Pramet
1.85000 / ea
Precision_Twist_Drill_018001
Right hand (clockwise rotation) cutting direction. Standard two flute design. Standard spiral, helical flutes. 118 °s; normal point suitable for most normal, general purpose, drilling applications. 135 °s; split point suitable for drilling high tensile strength, low machinability, ferrous materials, such as tougher alloy and harder stainless steels. Have a heavier web construction that offers greater rigidity and strength to better resist any increased torque. Self-centering and reduces the thrust required in drilling tougher materials.
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  • Features

Features

  • Right hand (clockwise rotation) cutting direction.
  • Standard two flute design.
  • Standard spiral, helical flutes.
  • 118 °s; normal point suitable for most normal, general purpose, drilling applications.
  • 135 °s; split point suitable for drilling high tensile strength, low machinability, ferrous materials, such as tougher alloy and harder stainless steels.
  • Have a heavier web construction that offers greater rigidity and strength to better resist any increased torque.
  • Self-centering and reduces the thrust required in drilling tougher materials.
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Steam oxide reduces wear and chip welding in harder ferrous materials for increased wear resistance and lubricity