Hole Saw KWB 175666 6.8 cm for Brick Marble Stone

The KWB 175666 hole saw with a diameter of 6.8 cm is a tungsten-carbide-tipped hollow core drill designed for drilling openings in masonry, stone, reconstituted stone, concrete, marble and brick. The tool features impact-resistant, specially hardened and brazed heat-resistant carbide plates to withstand high loads and temperature during cutting. It is supplied as a single-piece hole saw suitable for installation tasks such as fitting electrical sockets and waste pipes.

Advantages

The carbide-tipped cutting edge provides wear resistance and long tool life when cutting hard materials. Special brazing and heat-resistant carbide plates increase durability under impact and heat. The hollow core design removes material efficiently, producing clean, well-defined openings with reduced chipping in brittle surfaces.

Suitable for

• Drilling holes for electrical sockets in brick or masonry
• Creating openings for waste pipes in bathrooms and kitchens
• Coring openings in marble, stone and reconstituted stone
• Making circular cutouts in concrete and block work

Key specifications

• Brand: KWB
• Model / MPN: 175666
• EAN: 4009311756664
• Diameter: 6.8 cm
• Tip material: Tungsten carbide (brazed, heat-resistant)
• Design: Hollow core hole saw, single-piece
• Intended materials: Brick, masonry, concrete, stone, reconstituted stone, marble

How to use

Mark the required drilling position and secure the workpiece where possible. Mount the hole saw on a suitable arbor and attach it to a drill with appropriate power and speed for masonry work. Begin drilling with steady, even pressure and keep the drill axis perpendicular to the surface. Withdraw periodically to clear debris and allow the cutting edge to cool. After completing the cut, remove the core and inspect the hole for fit.

Usage recommendations

Use a drill with sufficient torque and variable speed; start at a lower speed to position the saw and increase speed as cutting stabilizes. Wear eye protection, a dust mask and gloves. For best results in very hard materials (marble, dense concrete), use water cooling or pause frequently to avoid overheating the carbide tip.