For Use With Metal/ Plastic/ Wood; 1/16 Inch/ 5/64 Inch/ 3/32 Inch/ 7/64 Inch/ 1/8 Inch/ 9/64 Inch/ 5/32 Inch/ 11/64 Inch/ 3/16 Inch/ 13/64 Inch/ 7/32 Inch/ 15/64 Inch/ 1/4 Inch/ 17/64 Inch/ 9/32 Inch/ 19/64 Inch/ 5/16 Inch/ 21/64 Inch/ 11/32 Inch/ 23/64 Inch/ 3/8 Inch; Titanium Nitride Coated; High Speed Steel; Set Of 21; With Handy Storage Case