Hole Saw High Speed Steel Three Blades Inclination Angle Design Durable Hole Cutter for Metal with Hex Key28mm

1、[Durable High Speed Steel] Made of high quality high speed steel material sturdy and durable long service life. 2、[Three Blades Design] Inner middle and outer three blades design higher efficiency not easy to collapse. 3、[Inclination Angle Design] Inclination angle design reduces friction and reduces the temperature of the knife. 4、[Evacuate Chips Smoothly] Evacuate chips smoothly greatly reducing jamming and tool breakage and stable performance. 5、[Applicability] Suitable for metal openings such as cast iron steel plate thick stainless steel thick non standard iron etc.