Inquiry (采购产品): Quote on Drilling Class II copper Bore (1) 3/16" diameter hole +/-.030" to pass through the center of the supplied 1/2" diameter X 24" long Class II copper. Okay to drill from both ends to keep holes more easily centered. **** Hidden Message ***** Jeffrey Stevens 45320 Company: Henny Penny Corporation E-mail: jstevens@hennypenny.com **** Hidden Message ***** jstevens@hennypenny.com