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How to Make a Custom Tap for Uncommon or Proprietary Threads

Creating a Custom Tap for Uncommon or Proprietary Threads

Have you ever needed a special size nut with uncommon or proprietary threads? Recently, I came upon a special size nut that I needed to repair an old Brown & Sharpe Protractor. Measuring the stud that I needed a nut for, I discovered that the stud was .207” and had 28 TPI. A number 10 bolt measures .190” and a ... Read More »

Shop Tip: A Fixture for Drilling Holes in Round Stock

DrillRndStk1

Here's a handy weekend metalworking project for you! James Instone shows us how he made a fixture that's useful for drilling accurate holes in round stock. Jim's fixture is simple, functional, and includes interchangeable drill guides. Read More »