Designed for the precision adjustment of variable capacitors, resistors and other electronic components. Can be used with audio tuners, amplifiers, TV, VCR, DVD players, video and camera equipment, radio, wireless communications equipment and computers. Made from high-quality zirconia ceramic. Outlasts metal and plastic tools. - Anti-static, non-magnetic, non-inductive heat resistant ceramic tips. No eddy current loss in high frequency. The zirconia ceramic tips are durable, antistatic, non-magnetic, non-inductive, heat resistant up to 1292 °F and are resistant to solder adhesion and acid (except for hydrofluoric).