8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 24 mm
Comply with DIN 3113 ISO 3318 Type A standard
Forged with 40Cr, hardness HRC42~45°
The surface adopts electrophoresis anti-rust treatment
The head bends 15° to facilitate the tightening of recessed hexagonal head bolts and nuts
Used for quick disassembly and tightening of hexagon head bolts and nuts