Master Mechanic, 17 Piece Titanium Nitride Drill Set, Lockable Deluxe Vinyl Storage Case, Tiltable Inserts For Easy Of Access, 135 Degree Split Point, Contains Sizes 5/64", 3/32",7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 5/16", 3/8" Titanium Coating For Longer Life Of Drill.