A pipe tool is a small gadget designed to aid in packing, smoking, and emptying a tobacco pipe.
Most common is the three-in-one Czech tool, which consists of a tamper, reamer and pick joined together.
A pipe knife is another three-in-one tool: the reamer and pick fold into the casing in the same fashion as a pocketknife, while the blunt end is used as a tamper.
A pipe nail is a nail-shaped tool with a tamper at one end and a reamer at the other.
Tampers and reamers are also made as separate tools.