Product Information     Materials：Steel 45     Quality：Hardness: HRC42-45, No flexure, Fracture and Rusting Phenomenon     Finish / Color：Antirust oil coated on the surface of the product     Size Details：10mm(3/8")；13mm(1/2")；16mm(5/8")；19mm(3/4")；22mm(7/8")；25mm(1")     Others：Hex Drill Bit Shank Code Barcode Packaging Shipper Qty TDW0006 9328675026776 Double Blister 60 SET