Offering a JACOBS 7BA Drill Chuck 7 Series  0-1/4" Capacity, Mount 1/2"-20 Threaded. Nice Clean Used Condition. NO CHUCK KEY INCLUDED. See photos for more Details on what is included in this listing and it's Condition.(ADS3)

Heavy Duty Keyed Chuck 7 Series 1/4in (6.5mm) Chuck

Jacobs Traditional Plain Bearing Design for Heavy Duty Industrial Drilling and Lathe Work.

1/4in (6.5mm) Capacity, JACOBS K7 Key.

Features:

• Heavy Duty Design.

• Jacobs fluted sleeve design.

• Jaws Center-Grind for Straightness and Alignment.

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

• Chuck Capacity  : 0.04"-0.25" (1-6.5mm)

• Key Type   : JACOBS K7

• Mount Size: Thread  1/2"-20

• T.I.R. 0.004" Maximum at half capacity.