Knipex 00 21 30 23 piece tool case for electrical contractors knipex 00 21 30 p this 23 piece tool case for electrical contractors from knipex features 23 branded tools partly vde tested in accordance to din en iec 60900 p p manufactured to a high standard with a heavy duty abs hard shell design plus aluminium frames and surrounding protective strip other features include document shelves and pen holding straps the removable tool board on each side with elastic straps and cover plate