Set analog 3-point internal micrometers BOWERS – SAM775-KIT

The set analog 3-point internal micrometers BOWERS is a solution designed for checking internal diameters across several measuring ranges, with the advantage of having a complete and organised kit in one case. It is particularly useful for mechanical workshops, tooling departments and quality control areas that need to inspect bores, holes, internal diameters and cylindrical seats on different diameters without managing separate individual instruments.

Each kit includes 2 or 3 micrometers, depending on the covered range, allowing the operator to cover the full internal measuring interval indicated. This means working with several coordinated internal micrometers, all collected in the same case and ready for use. In everyday operations, this helps speed up work, keep the equipment organised and reduce the time required to find the correct instrument.

The measuring principle is typical of 3-point internal micrometers: the measuring head works inside the bore with three contact points, allowing direct measurement of the internal diameter. This configuration makes the instrument particularly suitable for direct checks on bores and cylindrical seats, especially when a dedicated mechanical instrument and traditional analog reading are preferred.

One of the most interesting aspects of these sets is the BOWERS brand, supplied with a complete ready-to-use kit. Each kit includes the setting rings, and both the micrometers and the rings are supplied with a UKAS certificate included in the price. This is an important advantage for users who need not only reliable measuring instruments but also complete documentation from a metrological point of view.

The available range covers different internal measurement requirements, from smaller diameters to wider ranges. The sets are available in 6–10 mm, 10–20 mm, 20–50 mm, 50–100 mm, 100–150 mm and 150–200 mm ranges, each with the composition specified in the selected kit. Depending on the version, the kit includes 1 or 2 setting rings, allowing the instrument set to be adapted to the covered measuring range.

From an operational point of view, this type of kit is particularly useful when repetitive internal measurements must be carried out on different diameters and when organised, already documented instrumentation is required. It is an ideal solution for users looking for high-quality analog 3-point internal micrometers, supplied as a complete kit and immediately usable in workshop and quality control applications.

Applications

• Measurement of internal diameters across several measuring ranges
• Inspection of bores and cylindrical seats
• Dimensional inspections in workshops
• Repetitive internal checks with micrometers in the same case
• Use in tooling departments and quality control
• Measurement of holes and internal diameters of different sizes

FAQ – Set analog 3-point internal micrometers BOWERS

What is a set analog 3-point internal micrometers?
It is a kit composed of several 3-point internal micrometers collected in the same case, designed to cover a wide internal measuring range with dedicated instruments.

What is a set 3-point internal micrometers used for?
It is used to check internal diameters across several measuring ranges while keeping dedicated micrometers available for bores, holes and cylindrical seats.

Why choose a set instead of buying individual micrometers?
Because the set allows several measuring ranges to be covered with instruments already organised in the same case, making instrument management more practical and workshop work faster.

How does a 3-point internal micrometer work?
The measuring head works inside the bore with three contact points, allowing direct measurement of the internal diameter according to the range of the instrument being used.

How many micrometers are included in each set?
Depending on the covered range, each kit includes 2 or 3 3-point micrometers.

Which measuring ranges are available?
The available ranges are 6–10 mm, 10–20 mm, 20–50 mm, 50–100 mm, 100–150 mm and 150–200 mm.

Are setting rings included?
Yes, setting rings are included. Depending on the version, the kit includes 1 or 2 rings.

What are setting rings used for?
They are used to correctly zero the micrometers before measurement according to the selected measuring range.

Is the UKAS certificate included in the price?
Yes, both the micrometers and the setting rings are supplied with UKAS certificate included in the price.

Why is having the UKAS certificate already included useful?
Because it provides a complete documented set, useful when metrological traceability is important in quality control environments.

Are these sets suitable for repetitive inspections?
Yes, they are particularly suitable for repetitive checks on different internal diameters because several coordinated instruments are available in the same case.

What is the difference between an analog 3-point set and other internal measuring instruments?
This type of set is designed for direct internal diameter measurement with 3 contact points and covers several measuring ranges with an organised, ready-to-use kit.

Who is this set recommended for?
It is recommended for mechanical workshops, tooling departments, production areas and quality control departments that need a complete solution for checking internal diameters across several ranges.

What are the most common mistakes when using 3-point internal micrometers?
Common mistakes include incorrect zero setting, dirty internal surfaces, selecting a micrometer range not suitable for the required diameter and incorrect contact management during inspection.