3 piece set of titanium nitride coated, high speed steel bits replaces 28 individual drill bits. That means you don't have to constantly change bits when drilling the range of holes necessary on a countertop, for instance, so you can speed-up installation of kitchen/bath fixtures. Drill Bits with Quick-Change HEX Shank Titanium Coated HSS Steel Step Drill Bit Set and Soft Carry Case 3 Step Drill Bits Sizes: 6 Step Bit from 3/16" to 1/2" 9 Step Bit from 1/4" to 3/4" 13 Step Bit from 1/8" to 1/2" Single bit can be used for drilling a wide range of hole sizes. Step Bits are great for electrical panel work drilling or enlarging holes in sheet metal, aluminum or plastic boxes and chassis. Excellent for deburring holes left by other bits. Carry Case Helps Organize and Keep Bits All in One Place. No More Hunting for Individual Bits on the Bottom of the Tool Box, or Dealing with Broken Hard Plastic Drill Bit Cases

• Cool-running titanium nitride coating last longer than uncoated bits
• High speed steel for longer life
• Automatically deburrs holes while drilling
• Two-flute design for faster, smoother cutting
• Quick-change 1/4 in. hex shank

Cool-running titanium nitride coating last longer than uncoated bitsShanghai Kuang Heng Co., Ltd.