採用 氧化鎂結合獨家配方，同時擁有 #1000 的研削力與 #3000+ 的細緻度

可直接跳過多顆砥石，縮短研磨時間（時短砥石）

研磨時不易留傷痕，甚至可直接從 #2000 跳到 #10000 完成仕上

顆粒不易脫落，研磨後刀面平滑無粗糙劃痕

以往需 #400 → #1000 → #3000 三步驟

「颯」搭配 剛研新 #400，直接 #400 → #2000 → #10000，省略 #1000 目

測試鋼材：VG10、SG2、碳鋼

手感：細膩舒適、不滑不澀

自潔力佳：手輕輕一抹即可去除大部分髒污

出漿適中：不會泥漿滿手

效率：雖不及鑽燒，但配合 #400 基礎，整體速度非常快

Combines magnesia bonding with Naniwa’s original proprietary formula

Delivers the cutting power of #1000 grit with the fineness of #3000+

Eliminates the need for multiple grits, reducing sharpening time (time-saving whetstone)

Leaves minimal scratches—can jump directly from #2000 to #10000 for finishing

Hybrid structure prevents abrasive particles from coming loose, ensuring a smooth surface

Traditionally: #400 → #1000 → #3000

With “Hayate”: #400 → #2000 → #10000, skipping #1000 entirely

Tested steels: VG10, SG2, Carbon Steel

Feel: Smooth and refined, neither too slippery nor too grabby

Self-cleaning: Most debris wipes off easily by hand

Slurry: Moderate, doesn’t create excess mud

Efficiency: Not as fast as diamond plates, but with #400 as the base, overall speed is very high