8pc set with 28mm jaw opening, and 28mm throat depth. Securely hold parts for assembly, fastening, gluing, woodworking, building, automotive, modelling and metalworking. Easy adjustment without sticking or binding. Manufactured from drop forged steel. T-Grip for easy adjustment without sticking or binding. Durable Zinc plated spindles. Tough Powder coated finish. Floating swivel jaw pads avoids damage to work.