Inquiry (采购产品): Drilling Boron Steel We are to drill Dia. 16mm holes on boron steel (15B23M)with 6 mm thickness. Would you kindly advise us how we can do the drilling work without damaging the boron steel. Your prompt reply would be highly appreciated in advance. Best regards, SKA **** Hidden Message ***** Seungkil Ahn 135-986 KOR Company: SKA Enterprises E-mail: ska0725@gmail.com **** Hidden Message ***** ska0725@gmail.com