412F Coring

Name: 412F Coring
Brand: Geothermal Supplies

Geothermal Supplies

Price not listed

The 412F series is a range of components which produces a 75mm core suitable for soft to medium hard geology. It comprises of a core barrel head, inner and outer tubes, extension tube, core lifter, reaming shell and core bit. Different types of lifters, reaming shells and core bits need to be selected according to the application and geology. It uses a thin wall double tube core barrel used in combination with metric casing and is easily converted to a triplex system with the addition of a Coreliner for increased core recovery. Suitable for medium to hard geology Double barrel system Designed

Geothermal Supplies's own words, read from their page.

Buy from GEOTHERMAL SUPPLIES LIMITEDPrice seen 2026-09-26. Not an affiliate link, we earn nothing from it.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as GEOTHERMAL SUPPLIES LIMITED, number 05327422. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
No majority shareholding traced outside the UK. Companies House.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.

412F Coring

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