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Step 3Turn the bar
The next step is to turn the bar down to the diameter you want. You'll need to know what gauge piercing you want. In the US we use a bizarre system of measurement, of course. It's based on the Brown and Sharpe wire gauge measurements. I'm making an 10 gauge barbell, which comes out to 0.102 inches or 2.6 mm.
Take light cuts until you get down to the diameter you want. I like to make the last cut very light- just a couple of thousandths of an inch- at higher rpms. This leaves a smoother finish which is means less polishing. I finished this step with a diameterof 0.106, which leaves something to take off when polishing.
Take light cuts until you get down to the diameter you want. I like to make the last cut very light- just a couple of thousandths of an inch- at higher rpms. This leaves a smoother finish which is means less polishing. I finished this step with a diameterof 0.106, which leaves something to take off when polishing.
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