Specification Brand : ready BulletPoint1 : Sheet Metal Punch - 16mm BulletPoint2 : Heat treated cutting edges with black anti-corrosive surface finish to prevent rusting. BulletPoint3 : All punches are sold singly without key, which should be ordered separately. BulletPoint4 : A quick and easy way to cut clean metric sized holes in sheet metal up to 16 gauge. BulletPoint5 : High quality matel , Non-slip and durable Color : Ø16mm ExternallyAssignedProductIdentifier1 : 0759068981423 ExternallyAssignedProductIdentifier2 : 759068981423 ItemName : Sheet Metal Punch Hole Punch - Many Size 16mm to 50 mm (Ø16mm) ItemTypeKeyword : hand-tool-hole-punches Manufacturer : ready Material : Metal OperationMode : Manual ProductDescription : Feature: High quality matel , Non-slip and durable A quick and easy way to cut clean metric sized holes in sheet metal up to 16 gauge. The special design allows even load during cutting and produces a burr free hole that needs no extra finishing. Heat treated cutting edges with black anti-corrosive surface finish to prevent rusting. All punches are sold singly without key, which should be ordered separately. Thread the punch onto the hexagonal screw and then pass the hexagonal screw through the hole. Position the die on top of the die nut and then screw the die nut onto the projecting hexagonal screw until it touches the metal sheet. Use a hexagonal key to turn the hexagonal screw. The screw will pull the punch through the metal and a hole will result. Please note these instructions apply to cutters up to 15 mm in size, for cutters 15 mm and over have a different configuration. Notably they have fewer components, in the larger cutters the thread is in the punch and thus there is no die nut. Specifcations: Size :16mm Package Included: 1 x Sheet Metal Punch Hole