These forged Steel units are used when pulling or tensioning suspension strand. The KleinTools® L Strand Pullers feature a fixed and movable jaw linked to a clevis. Applying pull to the clevis causes the jaw in turn to grip the strand. Designed for tensioning strand sizes from 3/16 in. through 17/32 in. (4.7-13.5mm) and for pulling loads up to 8000 lbs. (3636kg)