Jacobs 8871 1/4" Heavy Duty Chuck 1/2-20 Mount 7BA
Jacobs Traditional Plain Bearing Design for Heavy Duty Industrial Drilling and Lathe Work.
1/4in (6.5mm) Capacity, JACOBS K7 Key.
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Heavy Duty Design.
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Jacobs fluted sleeve design.
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Jaws Center-Grind for Straightness and Alignment.
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Through-hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance.
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Each chuck 100% inspected for performance and precision.
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Chuck Capacity : 0.04"-0.25" (1-6.5mm)
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Key Type : JACOBS K7
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Mount Size: Thread 1/2-20
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T.I.R. 0.004" Maximum at half capacity.
Aeronca x 2 3rd st eastr5e1
