Perfect for use on concave, convex, and flat surfaces

• American pattern files available in bastard, second, and smooth cut in a variety of the most common lengths
• Two-sided file is rounded on 1 side and flat on the other, so you can round out holes with ease
• Rounded sides of pipeliner files are single-cut, allowing you to quickly remove material from the work piece
• This pipeliner file from Crescent Nicholson features single-cut sides