16N Ball Bearing Drill Chuck

Jacob's Super Chuck Ball Bearing Drill Chuck is specifically engineered for heavy-duty, close 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.Ball bearing construction maximizes gripping force and drilling accuracyJaws center ground for straightness and alignment1-piece sleeve eliminates crack between driving teeth often found in other designsThrough-hardened sleeve teeth plus hardened nose and keyholes provide outstanding wear resistanceFluted sleeve standardEach chuck 100% inspected for performance and precisionT.I.R. 0.003 in. maximum at half capacityChuck key included0.125 in. minimum capacity0.625 in. maximum capacity3JT taper mountUses key No. K4