Jacobs Ball Bearing Taper-Mount Chuck 18N 1/8"-3/4" Cap.W/Key

Jacobs Super Chuck BB Series Model 18N 1/8"-3/4" Cap. Ball Bearing Chuck 4JT (tapered mount) W/Key STANDARD FEATURES

• The Super Chuck® ball bearing chuck is specifically engineered for heavy-duty, tight tolerance production drilling. It is adaptable to a wide range of production drilling equipment, jig borers, milling machines, lathes and radials
• Utilizing a ball thrust bearing to reduce friction in the chuck closing mechanism, it permits the application of more gripping force on drill shanks to maximize drilling torque under the most demanding machining conditions
• Jaws center-ground for absolute straightness and alignment
• One-piece sleeve design eliminates cracks between driving teeth
• Sleeve teeth, nose piece and keyholes are through hardened, providing outstanding wear resistance
• Fluted sleeve standard
• 100% Inspected for performance and precision
• T.I.R. 0.003" Maximum at 0.375"

Number: 30233

Model:18N