This is a vintage Cobra Unibit step bit for drilling holes between 3/16" and 1/2".  It is New Old Stock, never used, still in the package.  Made in Tuscon, Arizona USA 🇺🇸

Vintage Cobra Unibit Variable 3/16" to 1/2" Bit NOS USA 🇺🇸

$6.00Price
  • Vintage Cobra Unibit Variable 3/16" to 1/2" Bit USA 🇺🇸