technical data:power [w]: 70diameter [mm]: 3-16rotation speed [1/min]: 1600grinding plate diameter: 58 mm 70 mm drill diameter: 3 mm – 10 mm (58 mm plate) 8 mm – 16 mm (70 mm plate) drill point angle: 118 degrees sharpener for sharpening drill blades made of steel. the sharpener is equipped with two working heads allowing for sharpening a wide range of drill diameters.the device is designed for intermittent work. the sharpener is used for sharpening blunt drill bits. it is possible to sharpen drill bits designed for drilling metal or universal drill bits. the sharpener is not intended for sharpening drill bits with a tip made of ceramic materials wood drill bits spade bits augers core drill bits or drill bits with a tip shape different from that of steel drill bits and universal drill bits.sharpening a drill bit: choose a hole in the head with the same diameter as the drill bit to be sharpened. turn the sharpener on with the switch and wait for the grinding disc to reach rated speed. insert the drill bit into the hole in the head and when you hear a grinding sound move it back and forth for 5-10 seconds simultaneously pressing the drill bit against the grinding disc with slight force. remove the drill from the head and then repeat the operation for the other edge of the drill bit. the edge closest to the outer edge of the head is always sharpened. the head holes have projections that limit the rotation of the drill bit in the hole. this facilitates the sharpening process. note! each surface should be sharpened for the same amount of time and pressed with the same force. this will prevent uneven sharpening of the drill bit. after sharpening the drill bit evaluate the results. if the tip of the drill bit turns blue or a color different from the natural color of the steel after sharpening this indicates overheating of the surface and the pressure of the drill bit on the grinding plate should be reduced. if after sharpening the edges of the drill bit are not the same length the sharpening time and pressure on each side of the drill bit should be equalized.sharpener 2 attachments 2 discs **
