Jacobs G8625 - 1/8"-3/4" x JT4 Superchuck Ball Bearing Drill Chuck

Ruggedly constructed for high stress applications, these heavy-duty chucks utilize ball thrust bearings to reduce heat and friction under extreme working conditions - while increasing gripping force and drilling accuracy. Through-hardened sleeve teeth, nose and keyholes for added durability. Jaws are center-ground for increased accuracy.

Specifications:

• 1/8" - 3/4", JT #4