Diamond Core Drill Bit 25mm, 241mm Depth, M16 Thread

Diamond dry core drill bit 25mm delivers clean, accurate holes in reinforced concrete and masonry with less wobble and faster positioning. Built from carbon steel with laser-welded diamond teeth, it’s designed for dry drilling when you need reliable cutting performance on job sites, renovations, and install work. The included pilot drill helps start holes precisely without pre-drilling, while multiple adapters expand compatibility across common drills and hammer drills.

• Delivers smooth, burr-reduced cuts with precision-ground diamond teeth for cleaner hole edges


• Includes 3 adapters, pilot drill and hex wrench to set up quickly and fit more drill setups


• Resists wobble with tooth centering aligned to the installation axis for steadier high-speed drilling


• Handles tough materials like reinforced concrete, red brick, concrete and foam brick


• Supports dry operation with laser welding to help reduce segment detachment during use

Built for installers and contractors who need dependable coring for air conditioning lines, plumbing penetrations, railing mounts, and general construction work. This 25 mm core bit combines a deep drilling capacity with a compact body for controlled handling in tight spaces. Keep your workflow moving with a pilot-guided start and broad drill compatibility for fewer tool changes between jobs. Grab yours today and be ready for the next concrete or brick drilling task.

• Diameter: 1 in / 25 mm


• Max drilling depth: 9-1/2 in / 241 mm


• Inner thread: M16


• Material: Carbon steel body with diamond cutting teeth


• Welding method: Laser welding


• Compatible machines: Drills and hammer drills


• Compatible materials: Reinforced concrete, concrete, red bricks, foam bricks, masonry


• Net weight (incl. accessories): 2.25 lb / 1.02 kg


• Product dimensions: 10.63 x 0.98 x 0.98 in (270 x 25 x 25 mm)


• In the box: Core bit, 3 adapters, pilot drill, hex wrench