Fits 12″ 680ES chainsaw and operates FORCE3 diamond chain WARNING: This product can expose you to Lead; which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. Bar Length: 12 in (30 cm) Cutting Depth: 12.4 in (31.5 cm) Power Type: Gas – 680ES Unit of Measure: Each