Jacobs 1 - 6.5mm 1B Medium Duty Drill Chuck

• Heavy and Medium Duty models for threaded or taper mounting
• Jaws centre-ground for absolute straightness and alignment
• One-piece sleeve eliminates crack between driving teeth often found in other designs
• Through-hardened sleeve teeth, plus hardened nose, keyholes provide outstanding wear resistance
• Each chuck 100% inspected for performance and precision
• T I R 0.004in maximum at half capacity