Carbide Electrician Cutter Sturdy Low Resistance 16-19.5mm Incisive Stable Hole Saw Kit For Industrial Supplies 19.5mm

Carbide Electrician Cutter Sturdy Low Resistance 16-19.5mm Incisive Stable Hole Saw Kit for Industrial Supplies ?19.5mm Specification: Item Type: Carbide Hole CutterMaterial: Carbide Purpose: To make holes in steel plate iron plate stainless steel aluminum plate calcium silicate plate plastic plate resin plate FRP platePlate Cutting Thickness: Approx. 3mm / 0.1inTotal Length: Approx. 88mm / 3.5inInner Wall Thickness: Approx. 20mm / 0.8inShank Diameter: Approx. 9.8mm / 0.4inHole Diameter Specification: Approx. 16mm / 0.63in 16.5mm / 0.65in 17mm / 0.67in 17.5mm / 0.69in 18mm / 0.71in 18.5mm / 0.73in 19mm / 0.75in 19.5mm / 0.77in Package List: 2 x Hole Saw 2 x Spring 2 x Hex Wrench Note: Not suitable for electric drills and impact drills as well as materials such as tiles concrete wall and stones.