Square Files

About Square Files

Square files are essential metalworking and engineering tools designed with a square cross-section profile, perfect for enlarging square holes, slots, and keyways or creating sharp internal corners that round files cannot reach. MyToolShed.co.uk stocks a comprehensive range of square files from trusted brands including Bahco, Draper, Sealey, and Nicholson, available in standard hand file sizes and precision needle file variants for detailed work.

These versatile files feature precision-cut teeth that remove material efficiently from ferrous and non-ferrous metals, including steel, aluminium, brass, and copper. Whether you need ergonomic handled files for everyday workshop tasks or three-square (triangular) files for accessing tight angles, MyToolShed offers professional-grade tools suitable for both tradespeople and serious DIY enthusiasts.

Applications

Square files are invaluable across numerous trades and applications:

• Engineers and machinists - filing square holes, slots, keyways, and splines in metal components
• Locksmiths - shaping keys and adjusting lock mechanisms with precision
• Toolmakers and fitters - creating accurate square recesses and cleaning up machined surfaces
• Maintenance technicians - deburring sharp edges and enlarging fixings in metal fabrications
• Blacksmiths and metalworkers - refining forged components and adjusting joinery
• Automotive mechanics - modifying brackets and filing metal parts during repairs
• Jewellers and model makers - using needle files for intricate detailed work

Choosing The Right Square Files

Consider these factors when selecting square files from MyToolShed.co.uk:

File size and type: Standard hand files (typically 100-300mm) suit general engineering work, whilst needle files excel at precision tasks and tight spaces. Three-square files provide access to acute angles that standard square files cannot reach.

Cut grade: Coarse cuts remove material quickly for rough shaping, whilst fine cuts produce smooth finishes for precision work. Bastard and second-cut grades offer versatile middle-ground performance.

Handle design: Ergonomic handles like those on Bahco Ergo files reduce hand fatigue during extended use. Some files are sold without handles, allowing you to fit your preferred type.

Brand quality: Professional brands such as Bahco, Nicholson, and Sealey offer superior steel quality, consistent tooth patterns, and extended working life compared to budget alternatives.

Material compatibility: Ensure your chosen file suits the metals you'll be working with - harder materials require files with appropriate tooth geometry.

Frequently Asked Questions

What's the difference between square files and three-square files?

Square files have four equal sides forming a square cross-section, ideal for square holes and internal corners. Three-square files (triangular profile) have three sides meeting at 60-degree angles, perfect for acute angles, serrations, and gullets that square files cannot access.

How do I maintain square files for longer life?

Clean files regularly with a file card or wire brush to prevent clogging (called "pinning"). Store files separately to prevent teeth damage, apply light oil to prevent rust, and always use files with proper handles to maintain control and reduce wear from improper pressure.

Can I use square files on hardened steel?

Standard files won't cut hardened steel effectively and may damage the file teeth. For hardened materials, you'll need specialised files made from harder steel or consider alternative methods such as grinding or using diamond-coated files designed for hard materials.