Luknjičar posamično KWB 175366

The KWB 175366 Hole Saw Single is a hollow-core drill with a tungsten carbide tipped cutting edge and an SDS Plus shank. It includes an 8 mm centring drill and is designed for impact drilling into masonry, stone, reconstituted stone, concrete, marble and brick. The tool features specially hardened, heat-resistant carbide plates brazed for durability and is intended for installing electrical sockets and waste pipe openings. The nominal diameter is 68 mm as specified by the manufacturer.

Advantages

Carbide-tipped cutting edges provide wear resistance and maintain cutting performance during repeated impact drilling. The SDS Plus shank ensures secure fitting in compatible rotary hammers, while the 8 mm centring drill gives accurate starts and reduces walking. Heat-resistant, specially brazed carbide plates increase resistance to thermal stress and improve service life when cutting hard masonry and stone materials.

Suitable for

Key specifications

How to use

Install the hole saw onto a compatible SDS Plus rotary hammer or drill, ensuring the centring drill is fitted and secured. Mark the drilling position on the work surface, start the tool at low speed to allow the centring drill to establish the hole, then apply steady pressure and use the rotary hammer's impact function as required for masonry. Withdraw periodically to clear dust and allow the tool to cool. After cutting, remove the core and clean the hole before fitting sockets or pipes.

Recommendations

Use appropriate personal protective equipment (safety glasses, dust mask, hearing protection and gloves). Match the drill to an SDS Plus rotary hammer with adequate power for the material. For clean edges in marble or reconstituted stone, use controlled speed and minimal lateral force. Do not exceed recommended operating parameters of your drill; keep the tool cooled by interrupting continuous use if heat builds up.