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Diamond Core Drill Bit 70 mm with M10 Thread for Angle Grinder Sintered Diamond Black Dry Drilling into Tiles Marble Granite and Glass

Diamond Core Drill Bit 70 mm with M10 Thread for Angle Grinder Sintered Diamond Black Dry Drilling into Tiles Marble Granite and Glass

Diamond core drill bit 70 mm with M10 thread for angle grinder. Sintered diamond for dry drilling into tiles, cladding, marble, granite, concrete and glass. Full description
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€34.45
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Overview
Diamond Core Drill Bit 70 mm with M10 Thread for Angle Grinder Sintered Diamond Black Dry Drilling into Tiles Marble Granite and Glass

The diamond core drill bit with a diameter of 70 mm is designed for drilling holes in hard building materials using an angle grinder. It features an internal thread M10 on the clamping side, allowing it to be screwed directly onto the spindle of the grinder without a chuck or additional adapters. The cutting section is coated with sintered diamond grains, which can handle ceramic tiles, cladding, porcelain tiles, marble, granite, concrete, and glass. The diameter of 70 mm indicates the size of the hole that will be created after drilling, so choose the diameter according to the pipe or element that will pass through the hole. The core bit is intended for dry drilling, without the need to add water. It is suitable for holes for electrical installation boxes, waste pipes, and pipe passages, and will be used by tilers, plumbers, and DIY enthusiasts during bathroom or kitchen renovations.

  • Diameter – 70 mm.
  • M10 Thread – attachment directly to the angle grinder with M10 spindle thread.
  • Sintered Diamond – diamond grains firmly bonded to the tool body across the entire cutting section.
  • Dry Drilling – drilling without water; cooling with water may extend tool life.
  • Chip Removal – two longitudinal cutouts in the casing for the removal of drilled material.
  • Materials – ceramic tiles, cladding, porcelain tiles, marble, granite, concrete, and glass.
  • Colour – black.
  • Package Contents – 1 piece of 70 mm diamond core drill bit.

When starting to drill, hold the grinder at an angle of approximately 45 degrees and carefully create a shallow groove in the surface in the shape of a crescent. Once the core bit catches, gradually straighten the grinder to a vertical position of 90 degrees and drill with gentle pressure. This procedure will prevent slipping on the smooth glaze and keep the edge of the hole clean. Allow the core bit to work under its own weight and do not apply excessive force, as this could cause the diamond layer to overheat unnecessarily. Before the first use, check that the core bit is securely tightened onto the spindle and that the grinder runs without vibrations or wobbling. During prolonged drilling, take short breaks, or you may cool the cutting section with water, which will extend the tool's lifespan. Use protective goggles, gloves, and a respirator, as fine dust is generated during dry drilling.

The 70 mm diamond core drill bit with M10 thread is a practical addition to any angle grinder. Thanks to the sintered diamond, it can handle hard tiles and natural stone, creating a clean hole without chipped edges. It is suitable for work on construction sites as well as at home, where you need to quickly make holes for electrical installation boxes, waste pipes, and pipe passages. The attachment to angle grinder M10 is quick, and the core bit can be easily swapped for another diameter. The tool is compact, making it easy to store in a toolbox and always have on hand. Dry drilling saves time, as there is no need to prepare water or cooling. The result is precise holes in tiles, marble, and granite without the need to purchase an expensive core drilling machine.

Price incl. VAT €34.45