The Bi-metal HSS hole saw set is a versatile kit suitable for both professionals and demanding hobbyists. The set includes hole saws in sizes 22–114 mm, covering the most common needs for pipes, pass-throughs, electrical, and installation work. Comes with both large and small arbors and a 300 mm extension rod, allowing work in deep or hard-to-reach areas. Bi-metal construction ensures durability and long service life, with varying teeth for effective cutting in steel, aluminum, copper, brass, wood, and plastic. Easy plug removal speeds up work and ensures smooth operation. Hole saw cutting depth: 38 mm, sufficient for most installation and construction tasks.