Bi-Metal Hole Saws, Set of 9 Metal Hole Saws Diameter 16 mm 18 mm 20 mm 22 mm 25 mm 30 mm 32 mm 35 mm 38 mm for Iron, Aluminium, Wood, Drywall, Plastic, Red

Features: Unique design: tooth-shaped bi-metal hole saw tilted forward and backward, fast cutting speed compared to ordinary drill saw with identical teeth, not easy to wedge or pull teeth. Wear resistant without shaking: quick-cut steel hole saw, sharp edge, high hardness, wear during operation, chips, reliable. Hole saws cut precisely without wobbling. Full Set Size: Bi-metal wood drill set contains the 9 most common saw blade sizes: 0.63" (16mm), 0.7" (18mm), 0.78"(20mm), 0.86"(22mm), 0. 96 inches (25 mm), 1.17 inches (30 mm), 1.26 inches (32 mm), 1.38 inches (35 mm), 1.49 inches (38 mm) Specification: Material: bimetal Quantity: 9 pieces Size: 0.63 inches (16 mm), 0.7 inches (18 mm), 0.78 inches (20 mm), 0.86 inches (22 mm), 0.96 inches (25 mm), 1.17 inches (30 mm), 1.26 inches (32 mm), 1.38 inches (35 mm), 1.49 inches (38 mm). Colour: red. Cutting depth: 20 mm. Item weight: approx. 760 g. Package contents: 9 x bi-metal hole saws. Warm tips: Use a hole saw timber set. Remember to put a plate in place that can. This is important. Placing the mounting plate between the blade and the nut prevents damage to the blade. It is recommended to use a machine with a drilling speed of 1000 rpm or less as it can extend the service life of the hole saw. Wear safety glasses and gloves when cutting, as you can do it safely. After the circular cutting metal a small amount of antioxidant oil on the surface of the filter, avoids natural oxidation and increases the service life. Wooden circular saw set that is not suitable for thick metal, pi