About Us

A&E Gauges Ltd. was formed July 1st, 1999 as a management buy-out from Brown & Sharpe PMI Ltd. The Shareholders are all former employees of Mercer Brown & Sharpe Ltd. Most of the current employees were previously employed by Thomas Mercer Ltd. St. Albans in the manufacture of Air Gauging equipment.

Air Gauge instrumentation and dedicated measuring equipment for the full range of Air Gauge products are now manufactured at our works on the original site of the Mercer Air Gauging factory in Redbourn, Hertfordshire.

Air gauging equipment allows fast accurate measurement of holes and shafts with close tolerance dimensions. In addition to size measurement components can be checked for ovality, lobing, straightness, and concentricity.

The Quality Policy of A&E Gauges Ltd.

A & E Gauges Ltd aims to maintain and improve its historical good standards for quality, service, and delivery meeting the needs of our customers at all times in accordance with customer, statutory and regulatory requirements, as well as our policies and procedures.

Top management is responsible for the implementation of our Quality Management System that has gained BS EN ISO 9001:2015 certification, including aspects specific to the design, manufacture, and service of Air Gauge Display Units, Air Gauge tooling and ancillary equipment manufactured at the Redbourn site. It also includes our supplier’s proprietary electronic displays for use with tooling manufactured by A & E Gauges Ltd. and for maintaining this certification. The scope of our Quality Management System covers all activities stated within our Scope Document and we are committed to:

1. Develop and improve our Quality Management System
2. Continually improve the effectiveness of the Quality Management System
3. The enhancement of :
a. Quality, specification, and integrity
b. Customer satisfaction
c. Supplier performance
d. Risk minimisation
e. Work ethics and best practices

A&E Gauges Limited through its management has a continuing commitment to:

1. Reviewing the internal and external issues affecting our Quality Management System and the needs and expectations of interested parties
2. Ensuring that our customer needs and expectations are determined and fulfilled with the aim of achieving customer satisfaction
3. Communicating throughout the Organisation the importance of meeting customer needs and all relevant statutory and regulatory requirements.
4. Establishing this Quality Policy and our ongoing Quality Objectives
5. Ensuring that Management Reviews not only set but review the quality objectives, and report on the Internal Audit results as a means of monitoring and measuring the processes and the effectiveness of the Quality Management System
6. Ensuring the availability of resources

We shall endeavor to comply with all relevant statutory and regulatory requirements, and constantly monitors our quality performance against objectives and implementing improvements when appropriate.

All personnel understand the requirements of this Quality Policy and abide by the requirements of the Quality Management System as defined in the Quality Procedures Manual. This Quality Policy is regularly reviewed in order to ensure its continuing suitability.

Air Gauging

Air Gauge products can be applied to single and multiple dimension applications, ie. taper, duplex, triplex plugs etc. Air Gauge Systems are particularly beneficial because "non contact" and self-cleaning characteristics reduce damage to component surface finish.

Measurement can be easily and swiftly carried out on the shop floor if required by machine operators thus minimising the potential for the manufacture of unacceptable components.


Your gauging and inspection procedures are a critical part of your production process, and their integrity is vital to your business. A&E Gauges can help support your gauging requirements. We can offer calibration of your air gauge equipment on-site or in-house at Redbourn.

UKAS Certs for setting rings/masters can be supplied with all gauges. Conformity and in house calibration certificates are available if preferred. A & E Gauges gauging references are fully traceable to National Standards.