NORTOOLS 29-Piece Jobber Twist Drill Bits Set ( 1/16" to 1/2"x1/64" ) Feature: · High Speed Steel Construction Bits are made from high quality high speed steel combined with a titanium coating to maximize the tool life without compromise to the quality after multiple uses. Ideal for use with power drills and drivers to stationary drill presses. · Versatile Use Sharpened drill bit edges allows faster penetration and is versatile for a wide range of applications ranging from repair work, automotive, and even construction use. · Stay Organized It is organized by a handy bit bar that makes storing this set in any toolbox, pocket or kitchen drawer easy and organized. Notice: 1. The working life of the drill bits can be largely prolonged by using with cooling liquid. 2. The bits are not suitable for hardened steel/heated treated steel. You will Get: 29 Pieces of HSS Drill Bits Set