Fiber-tipped Pens
Fiber-tipped pens are the preferred method of marking lines and hole locations directly on aluminum, because the graphite in a No. 2 pencil can cause corrosion when used on aluminum. Make the layout on the protective membrane if it is still on the material, or mark directly on the material with a fiber-tipped pen, such as a fine-point Sharpie®, or cover the material with masking tape and then mark on the tape.
Scribes
A scribe is a pointed instrument used to mark or score metal to show where it is to be cut. A scribe should only be used when marks will be removed by drilling or cutting because it makes scratches that weaken the material and could cause corrosion. [Figure]
![Scribe](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjn_Zeo0L9dKoym6iab4H6vKDSWGNqIh6kFEjDCspip2G-WpxMOxWAAm_NOMwkGY4iIX_RlhpCyz--KOZ_Yc9Xot1xMExlCH8EkIa9fVeDedT3migHyoVYEVvsEd2mLQzm_Y8sXofhpJA2WrtY5sP-gtQHHNz1hjFDUD0nyHEX3nySKoydNgdcQrrL/w400-h174-rw/7.webp) |
Scribe |
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