Inventories

Inventories as of June 30, 2017 and December 31, 2016 were as follows:



In thousands	June 30, 2017			December 31, 2016
Raw materials	$	31,131		$	24,518
Work in process	28,185			17,161
Finished goods	24,524			25,360
	83,840			67,039
Less: Progress billings	(1,851		)	(893		)
Total inventories	$	81,989		$	66,146

Included in work in process is gross tooling inventory of $18.3 million and $10.3 million at June 30, 2017 and December 31, 2016, respectively. Tooling inventory, net of progress billings, was $16.4 million and $9.4 million at June 30, 2017 and December 31, 2016, respectively.