Nietz Bi-Metal Hole Saw Medium Dutym2 30 Mm

* High Quality High Speed Steel (8% Cobalt) Teeth Blade Electron Welded to Alloy Steel to Increasethe Endurance of Cutting Edges.* 4/6 Variable Pitch Tooth Design Improved Chip Clearance & Lower Feed Pressure.* Suitable on Stainless Steel, Metal, Malleable Iron Pipe, Aluminium, Copper, Brass, Wood, Plastic.* Cutting Edge Can Be Grind/Sharpen for Continous Fast & Aggressive Cut Performance