1/2″(13mm) 14N 3JT K3 Super Heavy Duty Ball Bearing IND Keyed Chuck

? Jacobs ball bearing construction design inside. High Precision and Durability.

? Strong bit holding power.

? Jaws Center-Grind for Straightness and Alignment.

? Through-hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance.

? Jacobs’ original fluted sleeve design.

? Design for Heavy Duty Industrial applications.