ENEnglish pages: calculators, fits, threads, JA⇄EN terms

The toolbox closest to
the people who cut metal.

Speeds and feeds, ISO fits and metric thread tables, plus a Japanese–English machining dictionary for reading Japanese drawings and catalogs. Made in Japan for lathe, machining-center and 5-axis work.

◎Turning ✣Milling ⌀Drilling ⟟Tapping ⌇Thread dimensions ◁Taper ⊚Reaming ◉Boring ◠Ball end mill

MachinistsDesigners and buyersHobby lathe users

Hi, I’m Chips!
The RPM calculator
is right below.

◎Turning calculator

Cutting speed Vc (m/min)Workpiece diameter D (mm)Feed per revolution f (mm/rev)Length of cut L (mm)Nose radius r (mm)

Spindle speed n—rpm

Feed rate Vf—mm/min

Cutting time—

Theoretical roughness Rz—µm

Theoretical Ra (approx.)—µm

n = 1000 × Vc ÷ (π × D) Vf = f × n　　Time = L ÷ Vf Rz = f² ÷ (8 × r) × 1000　　Ra ≈ Rz ÷ 4

⇄Japanese ⇄ English terms

Type in Japanese or English and get the machining term in the other language instantly: 切削速度 ⇄ cutting speed, 面取り ⇄ chamfer, 幾何公差 ⇄ geometric tolerance.

Open the dictionary →

⊂⊃Fits and threads

ISO 286 limit deviations for common hole and shaft classes, and ISO metric thread dimensions with tap drill sizes.

ISO fits →　Metric threads →

NEW

Material cross-reference

JIS ⇄ AISI/SAE · UNS · EN · GB for steels, stainless, aerospace steels, titanium, nickel alloys, aluminum, copper and plastics — plus an ASTM standards list.

Cross-reference →　ASTM →

IN JAPANESE

Tooling and gauges

BT/BBT/HSK holders, collets, Morse tapers, calipers, micrometers and dial gauges.

ツーリング →　検査器具 →

IN JAPANESE

Machine-tool makers

Lathe, machining-center, grinder and gear-cutting machine makers by country.

メーカー →