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The Itm NUT001 is an arbor adapter nut that converts a 1/2"-20 threaded arbor to a 5/8"-18 thread, allowing smaller arbors without pins to fit larger hole saws. It is compatible with 1/2"-20 International Tool arbors including ARB-0, ARB-1, ARB-2, and ARB-8 and is sold as a single adapter nut. It is not recommended for use with hole saws larger than 2-1/2".
Thread converter 1/2"-20 to 5/8"-18; fits ARB-0/ARB-1/ARB-2/ARB-8; not for hole saws over 2-1/2"
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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