Bi-metal HSS hole saw set is supplied in a sturdy aluminium case that protects the saws and makes them easy to transport on site. The set includes a wide size range of 19–133 mm, making it suitable for versatile cutting of metal, wood and plastic materials. Included are both a large and a small arbor as well as a 300 mm extension rod, allowing easy access to work areas even in deeper or more difficult places. The bi-metal blades provide long service life and efficient cutting, while the variable teeth ensure an even and clean finish. A cutting depth of 38 mm is sufficient for most installation and penetration jobs. Easy plug removal makes working fast and uninterrupted.