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  1. Drill spindle adapters

    Power Tools & Machinery
    I recently read up on drill guides and found the majority of users out there prefer the old (no longer manufactured) Portalign drill guide. I found one on eBay and bought it. It turns out this guide only fits a 3/8 inch 24tpi spindle. The Dewalt drill I have has a 1/2 inch 20tpi spindle. I...