A measure of efficient use of cash flow as inventory. It is the number of times the average inventory has been sold during a period; cost of goods sold divided by average inventory for the period.
Inventory turns of 60+ annually are not unheard of in Just-in-Time production environments due to the throughput velocity of Standard WIP and waste elimination.
Inventory turns are naturally higher for repair vendors whose inventory consists primarily of labor cost that is liquidated periodically by progress billing.