Jacobs 32723 0M KL-0JT Stainless Steel Keyless Chuck 0.0 to 3.0 Millimeter Capacity with No.0 Jacobs Taper Mount Prevent chemical corrosion Reduce potential for hazardous sparking Minimize risk of ferrous contamination in sterile environments Self-tightening feature for maximum gripping power Each chuck 100-Percent inspected for performance and precision