Size:

6x7mm,8x9mm,10x11mm,10x12mm,12x13mm,14x15mm,14x17mm
16x17mm,17x19mm,18x19mm,19x21mm,20x22mm,21x23mm
21x24mm,22x24mm,23x26mm,24x26mm,24x27mm,25x28mm
27x29mm,30x32mm

Professional quality,forged from Cr-v steel hardened,
tempered and chrome plated for corrosion protection;
Polished bi-hexagon ring and jaw offset at 15 degree;