Hss Hole Saw Kit for Metal 5 Pcs for Thin Iron 16/18.5/20/25/30mm

5 SIZES: 16mm / 0.62 inches, 18.5mm / 0.72 inches, 20mm / 0.78 inches, 25mm / 0.98 inches, 30mm / 1.18 inches. Chunk Size: 2/5-inch(10mm)HIGH QUALITY: High-speed steel hole saw, drill hole saw, High precision, smooth cutting edge, especially impact resistance, wear resistance. Openings for stainless steel, iron, aluminum and various types of pipes.INTELLIGENT DESIGN: Hole cutters use spring design, which is convenient for removing chips, superior drilling efficiency; with hexagonal handle. with a spring, the drill will not get stuck during use.FUNCTION: High Speed Steel hole saw set is specially designed for thinner steel bits, Perfect for installing locks, knobs in doors and cabinets or drilling larger diameter holes, Hole Saw Set for Suitable for installation on handheld drill bits, bench drill bits and so on . for stainless steel plate, square tube, iron, cast iron, wood, F.R.P and other universal sheet metal.NOTE: Using lubrication or water to aid cooling can extend the service life of the hole sawcolour: black + silverMaterial: high-speed steelPackage Contents:5 x HSS Hole SawOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.