Complete with 16 pieces, this SCA Screwdriver Precision Kit comes with a wide variety of assorted bits capable for home or professional use. The unit comes in a convenient plastic case that has rubber edging, making it a great organisation tool that can be easily stored anywhere and is durable enough for being on site. What's included in this set? 14 x 28mm Driver Bits 108mm Extension Precision screwdriver bits holder Lightweight plastic box