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1 To shape and sand the neck: 1. Wear a NIOSH-approved respirator and ANSI-approved safety glasses during the next step to protect against dust! 2. Use a 4-in-1 shoe rasp to shape the neck until it matches the width of the fretboard (Figure 16). Figure 16. Shaping the neck. 3. Use a flexible sanding block with #150 grit aluminum-oxide sanding paper to sand the neck until there is a consistent scratch pattern on the entire surface. Note: When hand sanding, always sand in the same direction as the