I have on also. I was well worth the money. Like Walt, I dont use it everyday, but it is nice to have around. The bit get positioned in a holder on the side of the machine before it gets sharpened. I dont know if I got a special one, but mine will also put a notch in the bit tip that helps when drilling the hole. I paid like $100 for it awhile ago, and have saved that much just by sharpening bits instead of buying new ones.
