Combination Sets

About Combination Sets

Combination sets are essential precision measuring and marking tools that bring together multiple instruments in one convenient package. These professional-grade sets typically include a centre head, square head, and protractor head that attach to a graduated steel rule, allowing tradespeople and engineers to perform a wide range of measuring, marking, and layout tasks with a single versatile tool kit. MyToolShed.co.uk stocks combination sets from trusted manufacturers including Moore and Wright, Sealey, Faithfull, and Draper, available in both metric and imperial configurations with rule lengths typically ranging from 150mm to 300mm.

Modern combination sets feature hardened and ground steel components with precisely engraved graduations that won't wear away with regular use. Many professional engineers consider a combination set one of the most versatile tools in their kit, as it can replace several individual instruments whilst maintaining exceptional accuracy – typically within 0.001 inches or better on precision models. Whether you need a comprehensive 6-piece set for toolmaking or a practical 4-piece set for general workshop use, these engineering-grade measuring tools suit both professional tradespeople and serious DIY enthusiasts.

Applications

Combination sets are invaluable across numerous trades and applications:

• Engineering Professionals: Toolmakers, precision engineers, and machinists requiring accurate measurement and layout work on mills and lathes
• Metal Fabricators: Workshop technicians marking cutting lines, checking angles, and setting out complex fabrications in steel and aluminium
• Mechanical Fitters: Tradespeople installing machinery, checking alignment, and verifying squareness during assembly and maintenance work
• Joiners and Cabinet Makers: Woodworkers checking angles, measuring depths, and marking precise centre points for drilling operations
• Quality Inspectors: QA professionals verifying dimensions and angles on manufactured components against engineering drawings
• Maintenance Engineers: Site technicians needing portable precision measuring tools for equipment servicing and repair work
• DIY Enthusiasts: Serious home workshop users tackling engineering projects, machinery restoration, or precision woodworking

Choosing The Right Combination Sets

Metric vs Imperial: Consider your work requirements carefully. Engineering drawings in the UK increasingly use metric dimensions, but many legacy machines and American equipment still work in imperial measurements. Some professionals opt for dual-scale rules or maintain both sets for maximum versatility.

Rule Length: Standard sets come with 150mm (6") or 300mm (12") rules. A 300mm rule offers greater reach and versatility for most applications, whilst a 150mm set provides excellent portability for toolbox storage and site work.

Number of Pieces: Entry-level 4-piece sets typically include a rule, square head, centre head, and protractor. Comprehensive 5 or 6-piece sets may add a spirit level, scriber point, or additional attachments. Consider which heads you'll actually use for daily work.

Quality and Accuracy: Precision sets from manufacturers like Moore and Wright offer superior accuracy with ground and hardened components. Mid-range options from Sealey and Faithfull provide excellent value for general workshop use, whilst budget sets suit occasional DIY applications.

Material and Finish: Look for stainless steel or hardened steel construction with finishes that resist corrosion. Stainless steel sets are particularly suitable for environments where rust prevention is important, such as marine engineering or outdoor site work.

Frequently Asked Questions

What's the difference between a combination set and a combination square?

A combination square typically consists of just a rule and square head, sometimes with a centre head. A combination set is more comprehensive, usually including a square head, centre head, and protractor head, making it a more versatile tool kit for diverse measuring and marking tasks.

Can I use a combination set for woodworking as well as metalworking?

Absolutely. Whilst combination sets are engineering tools primarily designed for metalwork, they're equally valuable for precision woodworking, cabinetmaking, and joinery. The hardened steel construction makes them more durable than woodworking-specific squares, though you should protect them from excessive moisture and clean off sawdust after use.

What maintenance do combination sets require?

Keep all components clean and free from debris using a lint-free cloth. Apply a thin film of light machine oil to prevent rust, particularly on non-stainless steel components. Store in a dry environment, preferably in the original case, and avoid dropping the set as this can damage the precision ground surfaces and compromise accuracy.