Up to Ø 250 mm: The standard professional choice. Ideal for plumbers and contractors. Covers large drainage holes, central heating, and heavy structural drilling.
Up to Ø 182 mm: Suitable for general plumbing and construction work. Covers medium-length piping routes and standard air ducts.
Up to Ø 132 mm: Ideal for electricians and refrigeration technicians. Suitable for small holes (air conditioning pipes, wiring, switches). Mainly includes lightweight machines and handheld core drills.
Over Φ 250 mm: Industrial use & infrastructure projects. Refers exclusively to large machines (usually rig-mounted) for drilling of great depth and diameter.
