Size:Cutting diameter:30mm-120mm Specification: Material: Steel,Alloy Color: Black Cutting diameter:30mm-120mm Cutting thickness:3mm-50mm Features: Heavy-duty woodworking construction with longest tool life. Having adjustable two for sharp blades on both side of the measure-bars. - Adjustable Plane type design. -Adjustable Capacity 30mm - 120mm. 2 Changeable Centre bits for thinner or thicker materials freely. Dual blade design for faster, cleaner cuts. Can be used cut many kinds of materials, such as Plywood, Hardwood, Laminates, Composite, Rubber, Plastic, etc. Set of Cutter + Blades + Centre Drills. Comes with Hex Key and Center Drill Bit. How to Use: 1.set both cutting-blades on blade-holders tightly and correctly as shown in figure (on manual) in correct. 2.To adjust the size locate the inner edges of the blade holders against the size graduation.For example number "40" for a 1(40mm)dia.Hole. 3.Set 2 blade holders at the desired graduation on the measure-bar by tightly screw-in the hexnuts using L-shape hex wrench. 4.Use the chisel end drill when boring thin wood while use the twist-drill when wood is thick. 5.Before boring,hold 2 sides of veneer of timber firmly by stepping the twist-drill or chisel end drill at the center of the desired hole.When using power-drill,be sure to contact the cutting blades gradually and slowly on the object to be bored.Abrupt contact of the blades on the boring object can give shock to your hands. 6.When deep boring-1"(25mm)up to maximum 2"(50mm)-is desired,use the device from one side of timer,and then start boring again from the other side until the cutting blades bore through a hole making it-shaped disc. as shown in figture(manual). 7.By way of using optional measure-bar.large hole with maximum diameter of 8"(200mm) can be bored. Package Included: 30mm-120mm adjustable hole saw
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