13pcs 3/4" - 5" HSS (High Speed Steel) Hole Saw Set Kit for Wood Plastic Gray 7.9x3.9x3.9 Inch Has excellent sound permeability with

Has excellent sound permeability with minimal interference on the quality

has high hardness to hold more things on it

Mounting Hole Size: M5

making them stable even when processing materials at high temperatures

13pcs 3/4" - 5" HSS (High Speed Steel) Hole Saw Set Kit for Wood Plastic Gray 7.9x3.9x3.9 Inch Has excellent sound permeability withMade of high speed steel (hss), the hole saw kit offers excellent hardness, toughness, wear resistance, and heat resistance. The sprayed coating resists rust and corrosion. Sharp toothed edges allow for smooth, fast and easy cuts. The hole saws have more cutting edges than carbide hole saws, ensuring faster cutting. Side chip holes facilitate chip removal and prevent clogging, and allow coolant or lubricant to reach the cutting area, extending tool