Bessey EZM-EZL-SET 4pc Set Consisting Of 2 x 6" EZM 15-6 & 2 x 12" EZL 30-8 Clamps Key Features: One-handed operation Easily convert to a spreader Steel bar for strength Protective caps with crossed v grooves Specification: EZM 15-6 Clamping force: 750N (160lbs) Opening: 150mm (6in) Throat depth: 60mm (2 -5/16in) EZL30-8 Clamping force: 1400N (300lbs) Opening: 300mm (12in) Throat depth: 80mm (3-1/8in)