As shown in the attached pictures the bit is clamped into the sharpener and moved in a sweeping motion across the grinding surface. Once set up, bits can be sharpened very quickly, and they look as good as new or better. As the bits get smaller the setup becomes more critical due to the small amount of bit that can overhang the end of the sharpener. Once the sharpener is set up its just a matter of getting a feel for what you need to do. One note: take small grinding passes for two reasons, this avoids over heating the drill bit and it keeps both cutting faces even so they both are cutting equal amounts material. One of the hard parts to sharpening brill bits is getting the same geometry on both cutting faces on the drill bit. I set mine up on my 2” x 72” belt sander instead of the side of a grinding wheel. This drill sharpener is easy to use and easy to setup on almost any grinder or belt sander. This sharpener will work on bits that range in size from 1/8” to 3/4”.įor years I have sharpened drill bits by hand and with other devices and nothing comes close to this little jig. This little drill sharpener is well worth every penny that it costs. Good price, if you don’t have the money for an automatic machine. If this is not done, the two sides will be cut to different lengths. Only then can you advance the bit to cut more if necessary. Also, if you desire to sharpen both faces the same, it is necessary to cut one face and then, without any further adjustment, turn the bit 180 degrees to do the other side. Therefore, every time you wish to move the bit forward, it requires some fiddling with it. There are numerous adjustments to be maintained, and some include locking in place. First, the bits can be sharpened very well. I will say at this point two important points. It turns out that the bit surface is curved and so the necessity of swinging the bit back and forth on the grinding wheel maintains that curve. I didn’t at first like that the base can be twisted from the top portion, which can be viewed as changing the alignment of the bit and grinding wheel. The angle will not change while using it. I liked that the detents on the angle adjustment scale matched the angle adjustment indicator to lock them together. It gives the proper angle, depending on material to be drilled or the original angle of the bit set you have, and it gives the amount of distance the bit should extend past the lip rest point. That appears to be the purpose for the lip rest used as a rotational stop. To do the second side requires the bit to be rotated 180 degrees. Secondarily, the user must realize that the device holds the bit in place to sharpen one side at a time. One must first understand that using this device requires it to be fastened down next to a grinding wheel and perpendicular to it. Remember that whenever it mentions “drill”, it actually means “drill bit”. Keep in mind that the naming is incorrect. Otherwise you will have conflicting visuals from various pictures. It is different than the one enclosed with the tool.įurther, the tech support people recommend looking at the YouTube videos on the subject. Do not use the enclosed instructions.īy calling General Tool at 80, you may request they e-mail you the correct user guide. I found them to be difficult to follow because they did not have a listing of explanations for the part letters. The instructions are simply a photocopied piece of paper with poor resolution. It claims to fit bits sizes 1/8 to 3/4 inch and is made in the USA. This device is a stand-alone mechanism to hold a drill bit at a specific angle so as to facilitate sharpening by placing the bit against a grinding wheel. It is not a drill attachment, but a drill bit holder. Packaging Contents: Drill Grinding Attachment and instruction sheet
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