MILWAUKEE, Arbor, Pilot Bit, Spring, Compatible with 4270-20/4270-21, Drill Chuck Arbor Assembly - 1MZV9|48-66-2125 - Grainger
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CS Unitec | Heavy Duty 1/2" Drill Chuck w/Weldon Shank Adapter | Mag Drill Adapter Accessory: Amazon.com: Tools & Home Improvement
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Super Heavy Duty 1/2 Inch (1-13mm) Magnetic Drill Chuck With 3/4 Inch Weldon Shank Adapter | Fruugo NO
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