Abstract: A sampling tool or sampling thief having a number of removable sampling dies that can be placed within a receiving rod. These dies have cavities disposed therein defining varying volumes. The receiving rod comes in sections that can be mutually engaged to provide a rod of any length. The rod and the attached dies are then placed within a hollow outer tube containing apertures that are aligned relative to the cavities such that the rod and dies are manipulable into a position where the material to be sampled can enter the cavities through the apertures in the outer tube after the device is inserted into a powder blender or similar apparatus. As an alternative to the variously sized cavities, a die can be provided where the cavity is adjustable through a threaded adjustment or the like. The sampling thief is particularly useful for sampling pharmaceutical powder blends.