TADAKUNI

There is a nice accident at the root of TADAKUNI. The founder, Hajime Isomura, started out making carpentry tools, chisels and planes, in Tokoname City, Aichi Prefecture. He fell into scissors almost by chance, taking on subcontract work and ending up with a client’s scissor-making equipment as payment when that client went under. From that beginning in 1953, the workshop spent decades as a quiet contract manufacturer, building shears for other brands and sharpening its in-house technique out of the spotlight.

That changed gradually. The second generation, Masahiro Isomura, incorporated the business in 1981. The third, now at the helm, launched TADAKUNI’s own direct retail brand in 2022 under the “TIII” mark, a nod to the third generation taking personal responsibility for every pair shipped. The result is a small maker, around six staff, with far more manufacturing pedigree than its size suggests.

Made entirely in house

TADAKUNI runs the whole process under one roof: CAD design, wire-cut electrical discharge machining, precision grinding on diamond whetstones, and final hand adjustment. Two numbers capture the obsessiveness. Blade material is ground to an accuracy of 0.05mm, and the final “gap adjustment,” done entirely by hand, sets the blade gap to no more than 0.1mm. That hand-finishing step is where a shear’s smoothness really comes from.

The range covers cutting and thinning shears, including left-handed models, across blunt, slide, chop, and curve cutting, with thinning tuned anywhere from 10 to 55 percent. Steel choices span several grades; VG10 (V-Gold 10), a cobalt stainless alloy, sits among them. Pricing is mid-range, roughly 200 to 400 dollars.

How they sell

TADAKUNI offers multiple handle sizes, runs a free trial-scissor program so you can test before committing, and builds its whole model around maintenance and long-term ownership. Buy through the brand’s own online shop; the Japan hub lists other small workshop makers.