CRL UnibitĀ® Step Drill 3 Piece Set

  • Drill Up To 13 Diameters with Just One Drill
  • Perfectly Round Holes in Thin Material
The CRL Unibit Step Drill Set uses a unique, single flute design to drill perfectly round holes in thin materials. Cutting steps of progressively larger diameters make it possible to drill up to 13 different hole sizes with a single bit. Also, the hole is automatically deburred by the cutting edge of the next size up.