Unibit Self-Starting Step Drills - 54-326-4

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SKU:
54-326-4
No. of Hole Size:
13
Size Range Max:
1/2"
Size Range Min:
1/8"
Step Thick:
1/8"

SPI

Unibit Self-Starting Step Drills - 54-326-4

  • Multiple Hole Sizes UNIBIT Step Drills have an exclusive single radial concave flute
  • Allows the drilling of perfectly round holes in thin materials quickly and with less effort
  • Each bit is constructed of industrial grade high speed molybdenum steel,and is heat treated to a hardness of between 61 and 63 on the Rockwell scale
  • This assures maximum strength and long life
  • Use for steel,copper,brass,aluminum and other thin materials
  • Also ideal for drilling through wood,composition board,and even plexiglass and plastics which often crack with standard twist drills
  • Handle thicker materials by drilling from both sides of work surface
  • Use for reaming,deburring and cutting through soft wood or plasterboard



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TIN Coated Self-Starting Step Drill