Worked example — default entered values
Required confirmations: exact motor/stand range; core-bit working length; anchoring; breakthrough; water/slurry controls; competent planning.
180 mm diameter × 350 mm depth · reinforced concrete · wet permitted · reinforcement yes · structural confirmed · services confirmed
162 mm is the cited manufacturer handheld upper range, not a universal legal threshold.
500 mm reflects the cited heavy rig range.
The selector prefers a stand route for reinforced concrete.
Reinforced concrete may be structural even when not labelled as such.
Unknown structure or services fails closed. Hazard, wet-method, anchorage, component capacity, overhead water/electrical control or breakthrough conflicts are stop conditions.
FIT CHECK. This is a provisional planning route, not equipment selection or permission to drill. Structural stability, anchorage, services, exact component capacity, breakthrough, water/electrical and competent-person controls govern.
Source register · registry version 1.0.0
Hilti United Kingdom, Diamond coring — accessed 2026-07-24
Hilti United Kingdom, DD 350-CA Core drill — accessed 2026-07-24
HSE, HAV good-practice controls — construction — accessed 2026-07-24
HSE · updated 30 October 2024, Structural stability during alteration, demolition and dismantling — accessed 2026-07-24
HSE · updated 19 September 2025, Asbestos essentials — accessed 2026-07-24
Formula researched 2026-07-24