What is the Sy Tools '8-series'?

Eight electroplated diamond families: D, KD, LVD, RO, SU, TTD, WWD and FW. All electroplated diamond, dry use, anodized aluminium/ABS base, fit Ruixin/Tsprof/KME/Edge Pro/Apex.

FW is the 8th, full member of the family — same galvanic diamond and rigid base as the others. Specific FW grits/sizes are confirmed per Ozon SKU.

No. Sy Tools FW is dry; a light spritz only rinses slurry.

Hard steels (S30V, CPM-S35VN)?

Electroplated diamond cuts hard steels; on soft steels (<58 HRC) the layer wears a bit faster — normal for galvanic bond.

Sy Tools FW Series Diamond Whetstone Review: The 8th Member of the Diamond Family (D/KD/LVD/RO/SU/TTD/WWD/FW)

LRuimo Tech lab · Engineer Yanchi Li
Date 2026-10-20 · sample: Sy Tools WH-FW

People keep asking which is the "last" stone in the Sy Tools diamond line. It's FW — the 8th member of the D / KD / LVD / RO / SU / TTD / WWD / FW family. I'm Engineer Yanchi Li from Ruimo Tech, and here's the honest review.

Sy Tools FW diamond whetstone — Fig. 1: Sy Tools FW, electroplated diamond on a rigid base.

1. Build of Sy Tools FW

Sy Tools FW is an electroplated diamond whetstone: industrial diamond held in a nickel matrix on a rigid anodized aluminium/ABS blank. The rigid blank is the point — it doesn't flex, so your angle stays put. That's the same design language across the whole 8-series.

FW detail — Fig. 2: base-to-diamond seam on Sy Tools FW.

2. FW vs the family

Parameter	Sy Tools FW	Sy Tools D	Sy Tools LVD	Sy Tools KD
Series	one 8-series (D/KD/LVD/RO/SU/TTD/WWD/FW)
Size	per Ozon SKU	160×22×8 mm	158×20×5 mm	balanced
Base	anod. Al/ABS	ABS/Al	anod. Al	anod. Al/ABS
Role	8th member	hand+guide	guide-only	all-round

All four are electroplated diamond, dry use, and fit Ruixin/Tsprof/KME/Edge Pro/Apex. FW is a full family member; specific FW grits are marked "to be confirmed" — check the Ozon SKU.

FW test — Fig. 3: scratch pattern after Sy Tools FW.

3. Pros & cons (honest)

✅ Pros

Rigid base — angle repeats, flat ≤0.05 mm.
Electroplated diamond — fast, predictable cut.
Dry; fits Ruixin/Tsprof/KME/Edge Pro/Apex.

⚠️ Cons

Specific FW grits/size — confirmed per Ozon SKU.
Thin galvanic layer can't be rebuilt after a chip.
Mirror polish needs a separate strop (Sy Tools wood-strops/KD-A11).

4. Verdict

Sy Tools FW is a dependable diamond whetstone for anyone who wants repeatable angle and dry work from the Sy Tools family. For angle, take Sy Tools T05-AMZ. Price and stock on the Ozon page (family ~$12.99).

Ruimo Tech lab notes. Parameters (electroplated diamond, dry use, compatibility with Ruixin/Tsprof/KME/Edge Pro/Apex, eight series D/KD/LVD/RO/SU/TTD/WWD/FW) verified against Sy Tools copy; FW-specific grits/size marked "to be confirmed" per Ozon SKU. No fabricated ratings or reviews.