Общий каталог Yamawa 2021 - страница 644

8. Internal Thread Tolerance and Classes of Taps

DIN EN 22857 SP DIN 802 Internal thread tolerance range Denomination Characteristic

ISO

8H

7H

6H 5G

5H 4G

4H

6G

4H

6H

7H

PO

ST

ROLL

CARBIDE

Basic pitch diameter

LONG

YAMAWA P CLASS HAND

TAPS

P: ≤0.6 mm P: ≥0.7 mm

μ m Tol.: 15 μ μm Tol.: 20 μ EG (STI)

85 P5 100

70 P5 SPECIAL

P4 80 THREADS,

55 P4 60 GAUGES P3 40 P3 P2 40 25 P2

P1 20 THREAD

10 P1

MILLS

Basic pitch diameter Basic pitch diameter

DIES

ISO2X (6HX) ISO3X (6GX) CENTER

DRILLS

p = 0.20 mm ~ 0.7 mm x = +15 μ p = 0.75 mm ~ 1.0mm x = +20 μ p = 1.25 mm ~ 2.5 mm x = +25 μ

p = 2.50 mm ~ x = +30 μ Technical