<p>With the Pilot you'll sharpen an Orion tungsten electrode quickly and perfectly. Simply power on the base rotary tool and insert the electrode in the guiding hole. The Pilot properly aligns the electrode with the grinding wheel. No more guessing about proper angles!</p><p>The Pilot's rotary body is slim and contoured to comfortably fit your palm. Powered by a lithium ion battery, the Pilot provides hours and hours of use. Simply use the included power cord to charge the battery when needed. Also select from three different speeds with LED indicator.</p><h3>Why You Need a Sharp Electrode</h3><p>The sharper the electrode the better. A sharp electrode allows you to deliver weld energy with precision and accuracy. A blunt electrode will disperse weld energy in a wider area resulting in unsatisfactory results.</p>