55mm 2-3/16" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic 16 X 100mm Package Content: 5pcs x Fan

Package Content: 5pcs x Fan Grill

Large spiral grooves facilitate the export of metal chips

Material: Iron Plating

Effectively absorbing shocks and avoiding abrasion

Total Width: 45mm / 1

55mm 2-3/16" M42 High Speed Steel Bi-Metal Hole Saw Drill Bit for Wood Plastic 16 X 100mm Package Content: 5pcs x FanThe 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