• Made of chorme vanadium. Size: 18, 20, 22, 24, 27, 28, 29, 30mm.
• Ways in use: put stud puller wrench on screw then handle on it,
  turn it up or down.
• Funtion: screw without head, screw up, pull up.
• Advantage: quick function, no damage to stud.
• For most HGV applications.
 

• Made of chorme vanadium. Size: 18, 20, 22, 24, 27, 28, 29, 30mm.
• Ways in use: put stud puller wrench on screw then handle on it,
  turn it up or down.
• Funtion: screw without head, screw up, pull up.
• Advantage: quick function, no damage to stud.
• For most HGV applications.