145mm Hole Saw, KKMOSS BI-Metal Hole Saw with Work Arbor, Hole Cutter Drill Bit for Cutting Wood, PVC, Drywall, Aluminum, Thin Metal 5-11/16" Hole Saw)

Describe?Size: 145mmHole Saw(5-11/16"Hole Saw) Advantages of KKMOSS Bi-Metal Hole Saw Most users prefer to use a bi-metal hole saw for most of their work because of its compatibility with a wide variety of materials. It also cuts faster and smoother with less vibration thanks to the variable tooth pitch. A hole saw joins two different types of steel together to form the edge of the cutting end of the Hole Cutter Drill Bit. The high-speed steel is joined with soft spring steel to create a durable edge that cuts through a wide variety of materials and helps extend service life. Due to its wear-resistant properties, high-speed steel is used for the outer edge and forms the cutting edge of the teeth. Soft spring steel creates a flexible backing material that allows the hole saw to absorb the effects of drilling holes in difficult-to-cut materials. A good bi-metal hole saw can easily cut softer materials, such as plastic and wood items, as well as harder materials, such as steel and stainless steel. The type of HSS selected by the hole saw manufacturer will greatly contribute to the performance of the hole saw. The best bi-metal hole saws will be made of high-speed steel with a high cobalt content. We use high quality HSS high speed steel and M42 carbon steel in the manufacture of bi-metal hole saws. This matching material helps maintain tooth hardness at high operating temperatures, which in turn helps maintain the sharpness of the cutting edge. Package Included ? 1 x Bi-Metal Hole Saw ? 1 x hole saw handle ? 1 x Drill