Diamond drill bit Distar 17984445080 — 8 mm diameter, for concrete

Diamond drill bit Distar 17984445080 — 8 mm diameter, for concrete is a compact, diamond-tipped masonry bit designed to make precise small-diameter holes in concrete and reinforced concrete. It is intended for use with compatible rotary and rotary-percussion drilling systems to create clean openings for anchors, dowels, pipes, and cable passages during construction, installation, and renovation work. The bit combines a hardened steel shank with diamond-impregnated cutting segments to provide consistent cutting performance and extended wear life on abrasive substrates.

Advantages

The diamond cutting edge offers higher abrasion resistance and longer service life compared with conventional carbide bits when drilling dense or reinforced concrete. Its 8 mm diameter enables accurate small-hole placement with minimal chipping around the entry point. The robust shank design ensures secure retention in standard chucks and reduces wobble for improved hole roundness. The bit is suited for both dry and controlled-wet drilling methods depending on the drilling system and work conditions.

Suitable for

• Drilling 8 mm holes in concrete and reinforced concrete
• Preparing anchor and dowel holes
• Creating passages for small-diameter pipes and electrical conduits
• Installation and renovation tasks in construction and building maintenance

Key specifications

• Cutting tip: diamond-impregnated segment for masonry and concrete
• Nominal diameter: 8 mm suitable for small-diameter holes
• Shank type: hardened steel shank compatible with standard drill chucks
• Intended material: concrete, reinforced concrete, masonry
• Typical drilling mode: rotary or rotary-percussion; suitable for dry or controlled-wet use depending on equipment

How to use

Secure the diamond drill bit in a compatible drill or hammer-drill chuck, ensuring the shank is fully inserted and tightened. Mark the drilling location and, if possible, start at low speed to position the bit without wandering. Use steady pressure and moderate speed appropriate for the drill and material; allow the diamond segment to do the cutting rather than forcing the bit. For reinforced concrete, moderate percussion can assist progress, but excessive impact may reduce diamond segment life. Clear dust periodically to maintain cutting efficiency and prevent overheating.

Usage recommendations

When possible use water cooling or controlled wet drilling to extend diamond life and reduce dust. Wear appropriate personal protective equipment—safety glasses, dust mask or respirator, and hearing protection. Match drill speed and applied pressure to the drill and material; replace the bit when cutting performance decreases markedly to ensure hole accuracy.