This is a precision-engineered square file designed for filing internal corners, slots, keyways, and flat surfaces. Its four-sided cutting surface makes it perfect for enlarging square or rectangular holes and achieving accurate, clean finishes.

Key Features:

• Made from high-grade alloy or carbon steel

• Uniform square cross-section for precise filing

• Sharp, single/double cut teeth for effective material removal

• Ideal for filing slots, grooves, keyways, and corners

• Tang end for attaching a handle securely

• Suitable for machinists, toolmakers, metalworkers, and DIY professionals.