135 split point tip starts on contact, cuts with less force. Automatic indexing for easy bit access and identification. Cobalt steel extends cutting edge life and maintains cutting life after resharpening. Constructed of M-35 5 percent cobalt high speed steel for super abrasive resistance in tough metals. Extra hard drill for greater wear. Reduced shank above 3/8″ allows the use of larger drill bits in a 3/8″ chuck. Removable cartridges: easy to carry bits from case to worksite. Rubber overmolded case protects kit if dropped. Sizes include 1/16″ to 1/2″ in 1/64 increments. Tap & Drill selection chart for convenient reference. The item “29 Piece Cobalt M-35 Metal Index Drill Bit Set, Sold As 1 Set” is in sale since Friday, July 01, 2016. This item is in the category “Home & Garden\Tools\Power Tools\Drill Bits”. The seller is “plexsupply” and is located in Union, New Jersey. This item can be shipped to United States.