55mm 2-3/16" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic 16 X 100mm fits 1/2"(12mm) thick glass

fits 1/2"(12mm) thick glass

should be called a female connector

Total Width: 45mm / 1

Large spiral grooves facilitate the export of metal chips

Inner Race/Outer Race Material: Carbon Steel

55mm 2-3/16" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic 16 X 100mm fits 1/2"(12mm) thick glassThe 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