Does not deserve the name of fine

After I realized that in my Drill Doctor 500X of gross K100 was built instead of the promised K180 grinding cylinder, I had to 44.63 euros drauflegen to the finer K180 grinding cylinders to buy. The thus ground steel drill saw under the microscope but hardly fine polished than the other drills which were honed with the K100. The issue has therefore not worth it because under fine I had imagined something quite different.
On the other side but you have to accept that you also have to grind properly with this K180, so it must take place a reasonable removal of the drill. The drill should not be polished but ground.

I have the impression that the only remaining in the sieve coarser diamond dust expensive Darex grinding was used for the K100 and K180 to, so the no longer usable waste, slightly better than garbage. Specially you still are not exactly cheap devices DD 500X and 750X DD built. The waste must indeed be marketed.

Therefore, I give the K180 a star less, it could be even more finely, it is bad but not why.

Good to know:
To remove the cylinder diamond, I had to buy from a cone wrench 15/16 Lifu. The central screw on the grinding cylinder my DrillDoctos was so tight that I did not aufbekam also with all their might, even though I turned from the outset equal to the right. These aluminum screw has a left-hand thread Whitworth. To open it, you have to turn right. The screwdriver with a thick Pozidrive (Phillips) paper and a thick rubber grip with fine knobs did not make it. The Pozidrive recess in the screw head already started to deform. So I measured it and found a cheap 16mm cone wrench in my bike tool with which I was able to keep the other hand behind the cylinder. But the did not fit, he was a bit too small. After a brief filing by eye he was then 0.2 mm too large, wiggling slightly. This 16 mm cone wrench and the wrench provided comic I finally was able to loosen the screw. After removing the grinding cylinder then I realized that instead of the promised finer K180 cylinder of much coarser K100 cylinder was installed. Now I have to pay extra grinding cylinders about 45 euros for the finer K180er. Because I loop mainly smaller drill diameter.
But I wanted a good, exactly matching Konusschlüssel for my Drill Doctor 500X and I got the additional purchased Konusschlüssel 15/16 of Lifu also.