185mm 7-17/64" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic Keyed Cam Locks As a common building material

As a common building material

and resistant to high temperatures

Front Backrest Cover Size: 33 x 22inch (L*W) (Allow 0

instantaneous heat resistance up to 120C

and a gasket (all sold separately)

185mm 7-17/64" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic Keyed Cam Locks As a common building materialThe bi metal hole saw combines high speed steel and cobalt. The hole saw body is made of superior grade M42 high speed steel, which has excellent hardness, wear resistance, and heat resistance. The cutting edges or teeth are made of a cobalt alloy, which further enhances hardness and heat resistance. The sprayed coating resists rust and corrosion. Sharp toothed edges allow for smooth, fast and easy cuts. Bi metal hole saws have larger numbers of