Ryobi 21-Piece Steel Core Black Oxide Drill Bit Set with Storage Case<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Includes 21 bits for drilling through metal， wood and plastic</li><li>3-flat shank design on larger bits provides enhanced retention in drill chuck</li><li>Bits are fashioned with 135-degree split point to minimize walking</li><li>Coated with a black oxide finish for reduced friction and minimal heat buildup</li><li>Drill bit sizes included: (2) 1/16 in.， (2) 5/64 in.， 3/32 in.， 7/64 in.， (2) 1/8 in.， 9/64 in.， 5/32 in.， 11/64 in.， (2) 3/16 in.， 13/64 in.， 7/32 in.， 15/64 in.， (2) 1/4 in.， 5/16 in.， 3/8 in. and 1/2 in.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51nrghI0USL.jpg" noproxy>