Features:

• 1/4 " hex shank 3 bit set replaces 17 individual drill bits.
  
• Titanium nitride coated high speed steel.
  
• For use with metal, wood and plastic.
  
• Starts on contact, no center punch needed.
  
• Automatically deburrs holes as you drill.
  
• Sizes: 6 step: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 "; 9 step: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 ";13 step: 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16 11/32, 3/8, 13/32, 7/16, 15/32, 1/2 "