Package included: 1x Cutting Blades 1x Drill Bit 1x Hex Wrench 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 hex nuts 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. 7.By way of using optional measure-bar.large hole with maximum diameter of 12"(300mm) can be bored. Caution: Be sure to check all the hex-screws are tightly screwed in before you start boring in any case. Before you start boring hold both sides of the cutting objects firmly by 2 foots. When boring by power drill,1.000 R.P.M or under is desirable.
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