NT(Nickel-Titanium)Closed Coil Spring

Wire diameter

-Ultra Light 0.19mm (0.007″)
-Light 0.21mm (0.009″)
-Medium & Heavy 0.23mm (0.010″)

Spring inner diameter

-0.9mm (0.036″)

Strength

-Ultra Light(U), Light(L), Medium(M), Heavy(H)

Length

-8mm & 13mm

Hole diameter

Ø1.5, Ø2.0, Ø2.5

Used with MI Series

NT 15:use with SH,LH,PH series, GH 13~16 series, GH 20 series
NT 20:use with CH, DH series
NT 25:use with BH, TH, FH, HH series, GH 17~18 series
1 box contains 10 springs