The FAIFIRSC8 Engineers' File has the following specifications:
Cut: Round Second.
Blade Length: 200mm (8 in).
Blade Width: 8mm (5/16 in).
This Faithful Round Second Cut Engineers File is ideal for filing circular openings or concave surfaces and slightly tapered towards the point, with a double cut finish. For professional and frequent DIY use, fitted with a comfortable handle.
Second Cut: Approx 36 teeth per 25mm (Medium).