Diamond Hollow Annular Bit Wolfcraft 7957000

The Wolfcraft 7957000 Diamond Hollow Annular Bit is a diamond-coated core drill designed for precise, vibration-free cutting in hard materials such as tiles, concrete and masonry. The hollow design produces clean, accurate holes suitable for mounting power sockets, distribution boxes and cavity sockets. The tool includes a single annular diamond bit and comes in a storage box on card.

Advantages

The diamond segments are brazed to the cutting rim for extremely long durability and quick, fine cuts. The bit is suitable for work in brick walls and other masonry and produces little vibration during operation. The product version features two discharge holes and an exterior conveyor screw to help remove drilling debris. Packaging is provided as a storage box on card.

Suitable for

• Drilling holes for power sockets and distribution sockets
• Creating cavity sockets in brick and masonry walls
• Cutting precise holes in tiles and concrete
• Professional and DIY electrical installation work

Key specifications

• Brand: Wolfcraft
• Model / MPN: 7957000
• EAN: 4006885795709
• Type: Diamond hollow annular bit (1 piece)
• Cutting: Brazed diamond segments
• Version features: 2 discharge holes, exterior conveyor screw
• Packaging: Storage box on card

How to use

Attach the annular bit to a compatible drill or core-drilling adapter according to the tool manufacturer's instructions. Mark the drilling position, secure the workpiece or ensure stable wall support, and start drilling at low speed to establish the cut. Increase speed and apply steady, even pressure while keeping the bit cool if drilling in dense materials; use appropriate drilling fluid or intermittent drilling to avoid overheating. Clear debris through the discharge holes as needed and finish the hole to the required depth.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves, dust mask) and a drill with suitable torque and cooling capability. For best results on tiles and very hard substrates, use water cooling and avoid lateral forces on the bit. Match the bit diameter and adapter to the intended socket or box size and follow all safety instructions from the drill and accessory manufacturers.