VEVOR Drag Harrow, 4 ft x 5.6 ft Durable Chain Harrow with 80 Sharp Teeth, Suitable for ATV UTV Tractor, Ideal for Soil Preparation, Seeding, Smoothing Landscapes, and Yard Gravel Driveway Maintenance

Thank you for your inquiry. The tines are approximately 1/2 inch thick. According to the specifications, the metal mesh uses Ø12.5 mm steel wire and the drag bar uses Ø11 mm steel rod, which are both much closer to 1/2 inch (12.7 mm) than to 3/8 inch (9.5 mm).

Its tooth diameter is 0.45 inches / 11.5 millimeters.