General description This Hole Saw Core Bit set includes Ø30mm, 40mm, and 50mm drill bits, along with an SDS+ extension rod measuring 350mm. Made from high-quality tungsten carbide tipped material, this set is designed for durability and excellent drilling performance, making it ideal for tough jobs in concrete, brick, and masonry. Technical specifications Core diameter: 30mm, 40mm, 50mm Weight: 1.5kg Material: Tungsten carbide Extension rod length: 350mm Compatibility and accessories Includes Ø30mm, 40mm, 50mm drill bits Comes with SDS+ arbors and pilot drills Includes 1 locking screw Installation Simple operation with easy setup Use the pilot drill bit to stabilize the drilling process Usage Ideal for cutting clean holes in concrete, brick, and blockwork Suitable for installing air conditioners, extractor hoods, or washing machines Not recommended for use on steel, tile, or stone Other information