The burr is that feather of metal left after a diamond pass — it is proof you reached the edge, and it must come off. I'm Yanchi Li from Ruimo Tech, and I ran a clean test on how Sy Tools RB, YHB and the wood-strops/KD-A11 strops take it off fastest and cleanest.
Sy Tools diamond stones (8-series: D/KD/LVD/RO/SU/TTD/WWD/FW) cut aggressively and push a thin wire of metal to the apex. That is normal — the burr means you are at the cutting edge. The job is to remove it, not avoid it.
One blank, honed on a Sy Tools D stone (electroplated diamond, ~160×22×8mm — size to verify on Ozon), then each Sy Tools finisher in turn, checked with a nail-and-tomato-skin field test.
| Step | Sy Tools tool | Effect on the burr |
|---|---|---|
| 1 | Sy Tools RB (diamond rod) | Breaks and removes the main burr, squares the apex |
| 2 | Sy Tools YHB (ceramic rod) | Polishes micro-teeth, removes roughness |
| 3 | Sy Tools wood-strops / KD-A11 (strop) | Removes the micro-burr, mirror finish |
The Sy Tools RB → YHB → wood-strops/KD-A11 sequence gave the cleanest cut: RB breaks the body, YHB closes the scratches, the strop sets the micro-wire. Exact grit/size of RB and YHB — verify on Ozon (no fabrication).
With the Sy Tools T05-AMZ precision angle regulator (15/20/25°), you keep one angle across every step — the burr forms predictably and comes off in fewer passes. That is repeatability, not luck.
Ruimo Tech lab notes. Logic (diamond forms a burr → RB breaks it → YHB polishes → strop mirrors) is basic finishing ergonomics. Exact grit/size of RB/YHB and the wood-strops/KD-A11 kit — verify on Ozon. No fabricated ratings. Fresh burr-removal science slug, distinct from the older RB/T05 tests.