De walt screwdriving and drilling set this comprehensive 67 piece drill and bit set has been compiled with the trade or professional user in mind it includes a number of the most commonly used multiples of many of the same size screwdriver bits along with a set of high quality hss jobber drills firstly there are two puck shaped like a hockey puck tubs one contains 15 torx star tipped bits of the standard 25mm length there are three of each of the following sizes t10 t15 t20 t25 and t30 the oth