DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case (1/16″ – 1/2″ X 64ths), DWDCO Series Set of 29 jobber length drill bits includes inch sizes 1/16″ to 1/2″ in 1/64 increments Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials Gold oxide finish lubricates the drill bit and provides wear resistance Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging Meets ANSI specifications. Our goal is to provide high-quality products and excellent customer service. Feedback will be left automatically after we receive your feedback. We would try our best to help you solving any problem. (Orders are not processed on weekends & holidays). Leaving correct address can minimize delay. International buyers please note. Local pick-up is unavailable at the moment. We devote ourselves making EVERY CUSTOMER in 100% Satisfactory and resolve any problem. We highly value and appreciate your business. If you do not get a response from us, then please check your junk or spam mailbox. We are committed to resolve all issues in a friendly and satisfactory manner.