Product information: kwb Bi-Metal Hole Saw 57 mm SB 598057. The kwb Bi-Metal Hole Saw is a versatile tool for various materials. With its progressive Vario tooth design, it allows for accelerated chip removal, ensuring efficient operation. Thanks to the HSS teeth, which are alloyed with 8% cobalt, this hole saw is extremely durable and has a long service life. It is ideally suited for use on steel, cast iron, construction steel, stainless steel sheets, aluminum, bronze, copper, as well as plastics like acrylic and drywall. Wood is also no problem - the kwb Bi-Metal Hole Saw cuts effortlessly through this material. Included accessories: 1x kwb Bi-Metal Hole Saw 57 mm SB 598057.