Now you never have to run to the hardware store to replace a broken bit. This set includes 31 drill bits in commonly used sizes from 1/16in. to 3/8in. by 1/64 in. steps and 31 replacement bits. Reduced shank bits fit all drills 3/8 in. or longer. Titanium-coated drill bits resist heat for durability. Storage box is indexed to help you find the right bit quickly. Replacement bits are packed in 4 storage tubes Key Specs Includes (qty.) 62 Diameter (in.) 1/16 - 3/8 Includes Bits and case Case Included Yes