This Hanson 16 piece set consists of 15 Sure-Point® round pencils with a Pro-Sharpâ„¢ sharpener in a tube pack. The Pro-Sharpâ„¢ Sharpener is the World's first chuckable drill powered pencil sharpener. It universally fits into any drill or 1/4 inch (65mm) quick change system. It produces a fast consistent pencil point every time.