The Inspex Surface Roughness Tester IPX-105, created by Bowers Group, is a portable, battery-operated tool for checking surface roughness, suitable for laboratory, workshop, and on-site inspections. Encased in sturdy metal housing, it features a piezoelectric probe that detects surface irregularities and displays the measurements digitally. This 9V battery-operated tool is effective on various materials like steel, iron, granite, ceramics, and bone. Understanding surface roughness is crucial, as it affects wear, friction, and overall mechanical performance.