5 - 20mm Jacobs Plain Bearing Drill Chuck J3
The Jacobs Plain Bearing chuck is the world's most widely used for medium or heavy duty portable, bench or floor mounted power tools. This industrial quality chuck with full hardened and ground working components, offers exceptionally high accuracy, gripping power and durability.
Features:
Jaws centre-ground for absolute straightness and alignment.
Through-hardened sleeve teeth, hardened nose and keyholes ensure outstanding wear resistance.
One-piece sleeve eliminates crack between driving teeth often found in other designs.
Each chuck is 100% inspected for performance and precision.
Capacity : 5 - 20mm
Closed Length : 103mm
Open Length : 80mm
Sleeve Diameter : 64.5mm
Mount : J3 Model : 36
Key : K4
Part Number 6309