TCT Hole Saw Set, 6 Piece, Ø 68 / 82 mm

6-piece hollow core bit set, hollow core bit with carbide tipping, impact-resistant, specially hardened, specially soldered heat-resistant carbide tips, for use in masonry, natural stone, artificial stone, concrete, marble and brick, for setting electrical flush-mounted boxes and pipe openings, ideal for electrical installations, for standard impact drills.