Product Features: Resists twisting under pressures. Head and slide are against breakage. Fixed head fitted square to bar with 1.5 to 2 degree taper for a true parallel clamping action. Durable steel handle and main screw. Fast action rolled twin start acme thread for strength and wear resistance. Drilled feet for bench mounting. Brand: Irwin. Hand Tools Type: Clamps and Vices. Model Number: T136/7. Color: Blue and Silver. Capacity: 1350 mm.