Specialist metrology knowledge makes Wessex Metrology an acknowledged leader in the supply of screw thread gauges. We deliver a comprehensive range of standard sizes from stock, including metric M2 to M100, Tr, UNC, UNF, G, BSW, NPT, R, and can deliver non-standard classes of fit, special thread forms and special designs on short lead times.

We represent Europe's largest manufacturer of precision gauges; substantial investment in plant, equipment and measuring technology over a period of many years enables them to deliver gauges of the highest quality at very competitive prices.

Click here for more information on Thread and Plain Gauge terminology and specifications  

The ubiqutous Go/NoGo gauging system is the simplest and often most effective way of checking hole and shaft sizes.  Available as :

• Plain cylindrical plug and ring gauges:0.2mm to 250mm

• Setting rings: 1.5mm to 200mm, Class XX and Class X

We offer two levels of service : Standard Delivery within 3-4 weeks and FastTrak for urgent jobs. 

UKAS Certificates are available with all these gauges.

All gauges are supplied in through-hardened toolsteel and some products are available in ceramic or tungsten carbide.













• Taper plug and ring gauges

• Machine taper, morse taper

• Luer taper

Manufactured to national and ISO standards these are supplied in Toolsteel or Hardchrome.

We offer two levels of service : Standard Delivery within 3-4 weeks and FastTrak for urgent jobs. 

UKAS Certificates are available with all these gauges.

These gauges are custom built. Send us your design documentation or specifications and we can assess the optimum gauges for your application.


• Square, hexagonal and spherical gauges

• Thread depth gauges

• Bevelled straight edges and squares

• Sine bars, X-Y tables

UKAS Certificates are available with all these products.






Pin sets are available in a variety of standard configurations and increments, usually supplied in special boxes to protect your investment. Special sets can be made up to your requirements.

Boxed sets of pins 0.1mm to 20mm diameter, tolerances from 0.5 micron

All pins are through hardened toolsteel, precision lapped to either unilateral or bilateral tolerances. Pins can also be supplied in ceramic or tungsten carbide.

UKAS Certificates are available with all these gauges.