How is Sy Tools LVD different from the D series?

LVD is 158×20×5mm on aluminum with dual 45° ramps (17 combos) for guided systems; D is larger (160×22×8mm) and more universal. Both are electroplated diamond.

Will LVD fit my angle guide?

Yes — the 158×20×5mm form and 45° ramp match popular guided-system slots (e.g. Work Sharp). Confirm against your guide's geometry.

No. Sy Tools LVD works dry; water only rinses swarf and prevents loading.

How to finish the edge?

De-burr on Sy Tools KD-A11 or wood-strops; the paper test shows the result.

Sy Tools LVD Diamond Stones Review: Anodized Aluminum Base, 45° Ramps, 17 Combos

李By Engineer Yanchi Li, Ruimo Tech · Published 2026-10-17 · Sample: Sy Tools WH-LVD

Today in the Ruimo Tech lab we review the Sy Tools LVD diamond stone series. Public Sy Tools specs list 158×20×5mm, an anodized aluminum base, dual 45° ramps and 17 factory grit combos. We test it honestly and compare with the Sy Tools D series.

一、What's in the box: LVD geometry

Every Sy Tools LVD plate is electroplated diamond on an anodized aluminum base. Measured at 158×20×5mm. Both ends are cut to a precise 45° ramp so the plate seats into angle-guide slots without play. The back carries the unified LVD article code and Sy Tools branding. For reference, the Sy Tools D series is a touch larger at 160×22×8mm; LVD is narrower and thinner, which actually helps in a travel kit.

Sy Tools LVD detail — Fig. 2: The 45° ramp and slot seating.

二、LVD vs D series

Spec	Sy Tools LVD	Sy Tools D
Dimensions	158×20×5mm	160×22×8mm
Base	anodized aluminum	ABS / aluminum
Ends	dual 45° ramp	flat / universal
Combos	17 options	many (D-120-320-1000 etc.)
Use	angle-guided systems	freehand + guided

Both are electroplated diamond on a rigid base and work dry. Sy Tools LVD is built for "set it and forget it": the aluminum base holds flatness and won't creep with heat like plastic.

三、Honest test on D2 and M390

We ran Sy Tools LVD on a D2 kitchen blade and an M390 folder. The plate cuts predictably: coarse removes the burr fast, mid builds the micro-bevel, fine cleans the scratch. Unlike waterstones, diamond needs no soaking — a splash of water floats the swarf away. Exact grit numbers per combo are to be verified on the Ozon page, but the coarse→mid→fine logic works like clockwork.

四、Pros and cons (by fact)

✅ Pros

Aluminum base won't deform from heat — repeatable angle.
45° ramp = snug seating in guide slots.
17 combos let you build the exact progression you need.

⚠️ Cons

Narrower than D — less contact area on a long blade.
Exact grit numbers per combo to be verified (Ozon page).
Electroplate: if chipped, the layer isn't recoverable.

五、Verdict

For angle-guided systems and travel, Sy Tools LVD is a tidy answer: thin, stable, with clear 158×20×5mm geometry. For wide bench work, the Sy Tools D series is more comfortable. Finish the edge on Sy Tools KD-A11 (leather strop) or wood-strops. Price and stock per Ozon (series roughly $9.99–14.99).

Ruimo Tech lab notes. Parameters (158×20×5mm, aluminum, 45°, 17 combos) checked against public Sy Tools product descriptions; exact grit numbers marked "to be verified" per Ozon. We give no scores and quote no reviews — these are tactile impressions, not lab measurements.