General description This high-quality TCT concrete hole saw set includes everything you need to get started with drilling in masonry. It features tungsten carbide tipped drill bits that are perfect for cutting clean holes in concrete, brick, and cinder blocks. This set is ideal for various applications, including the installation of air conditioning systems, range hoods, or washing machines. Technical specifications Weight: 1.5 kg Material: Metal Carbide Color: Silver Diameter of cores: 30 mm, 40 mm, 50 mm Extension rod length: 350 mm Packing list Ø30 mm, 40 mm, 50 mm drill bits SDS+ mandrels Pilot drill SDS+ 350 mm extension rod 1 locking screw Usage Suitable for brick walls, red bricks, masonry, foam bricks, hollow cores, etc. Not recommended for use on steel, tiles, or stone. Other information