high helix masonry drill set

which is favored by many eruropean countries.
it is used to cut concrete.

Drill bits are machined from high carbon steel with carbide tipped cutting edge

High quality for the professionals

For use with rotary and percussion drills

For drilling in concrete, stone, masonry, marble, granite and hard materials

Surface: Black & Silver, Sand Blasted, Galvanized Surface and Plastic Coated & Silver