Tools & Measurement

Verified by Mel Sykes, Industrial Supply Chain Specialist - April 2026

Specification	Details
Measurement	Calipers (digital/vernier/dial), micrometers, thread gauges, bore gauges, CMM
Hand tools	Spanners, torque wrenches, pullers, presses, Allen keys, pliers, circlip pliers
Standards	ISO 13385 (calipers), ISO 3611 (micrometers), BS 6001 (inspection sampling)
Brands	Mitutoyo, Starrett, Kennedy, Norbar, Bahco, Gedore

## What are Tools & Measurement? Tools & Measurement refers to precision instruments and hand tools used for accurate measurement and maintenance tasks in engineering environments. These include calipers, micrometers, torque wrenches, and CMMs, all adhering to strict international standards. ### Types of Tools & Measurement Calipers come in digital, vernier, and dial varieties, each offering unique precision levels suitable for different applications. Digital calipers like those from Mitutoyo provide instant readouts with millimetre accuracy down to 0.01mm, while starrett's vernier models offer high precision manually. Micrometers are important for measuring small distances with utmost accuracy; they comply with ISO 3611 standards and feature readings as fine as 0.01mm. Thread gauges ensure correct thread pitch and diameter alignment, preventing costly errors in mechanical assemblies. Bore gauges check internal diameters of cylindrical parts to tight tolerances. Torque wrenches from Norbar apply consistent torque during bolt tightening, ensuring safety and structural integrity without over-tightening that could damage components. CMMs (Coordinate Measuring Machines) like those from Brown & Sharpe provide detailed 3D measurements with micrometre precision, important for quality control in manufacturing. ### Materials and Specifications Calipers often use stainless steel grades such as A2-70 to resist corrosion while maintaining strength. Micrometer components frequently utilise EN8 carbon steel due to its high tensile strength and durability under repeated use. Inspection sampling techniques follow BS 6001 guidelines, ensuring a statistically valid sample size for quality assurance. Thread gauges are made from hardened tool steels like S7 or HRC58-62, providing durability against wear during repetitive measurements on machined parts. Bore gauges typically employ tungsten carbide tips to withstand abrasive conditions and maintain accurate readings over time. ### How to Choose the Right Tools & Measurement Selecting the right tools involves understanding specific measurement requirements and adhering to industry standards like ISO 13385 for calipers. Precision is critical, so choose instruments with appropriate resolution and accuracy limits-digital calipers offer 0.01mm precision, while dial micrometers can measure down to 0.02mm. Consider durability and environmental factors such as corrosion resistance when choosing materials like stainless steel or hardened tool steels. Regular calibration ensures ongoing accuracy; a standard practice is annual recalibration according to ISO 3611 for micrometers. ### UK Suppliers MLC lists verified suppliers from Companies House, ensuring that procurement managers can trust the quality and reliability of tools sourced through our directory. Major brands like Mitutoyo, Starrett, Kennedy, Norbar, Bahco, and Gedore are well-represented with a wide range of products suitable for various engineering applications. ### Common Applications Tools & Measurement find extensive use in automotive manufacturing, aerospace maintenance, and mechanical workshops. For instance, torque wrenches from Norbar ensure proper bolt tightening in aircraft assemblies, while digital calipers like Mitutoyo's help measure critical components to micrometre precision in engine parts fabrication. CMMs play a key role in quality control by providing accurate 3D measurements for complex geometries, ensuring products meet stringent design specifications. Thread gauges and bore gauges are indispensable in machining operations, guaranteeing the correct fit and function of mechanical assemblies. Maintenance engineers rely on these tools to perform regular inspections, preventing equipment failures through early detection of wear or misalignment issues. Proper tool selection and maintenance contribute significantly to operational efficiency and safety standards in industrial settings.