Material: special tool steel
drop forged, entirely hardened and tempered
head polished
surface finish: chrome plated to standard EN12540
tips black finish
double plastic dipped handles
made according to standard DIN 5254 form A
For lock rings:
external: 10 to 25mm
internal: 12 to 25mm
Advantages:
30% higher endurance in comparison to convenient lock rings pliers
with inserted tips
for diameter 3 to 10