Specification Brand : Greenlee BulletPoint1 : Product Type :Tools BulletPoint2 : Package Dimensions :34.036 Cm L X 21.336 Cm W X 17.018 Cm H BulletPoint3 : Country Of Origin :China BulletPoint4 : Package Weight :0.72Lbs BulletPoint5 : Trusted And Used By Experts, Professionals And Those Who Know Quality Color : Black ExternallyAssignedProductIdentifier1 : 783310521730 ExternallyAssignedProductIdentifier2 : 0783310521730 ExternallyAssignedProductIdentifier3 : 00783310521730 GpsrSafetyAttestation : 1 IncludedComponents : Tools & Accessories ItemName : Greenlee HB.9982 Housing Unit, 1-Pack ItemPackageDimensions_Height : 31.5 centimeters ItemPackageDimensions_Length : 11.8 centimeters ItemPackageDimensions_Width : 16 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hand-tool-knockout-punches Manufacturer : Greenlee Textron Material : Metal Material1 : Stainless Steel Material2 : Iron MaximumWeightRecommendation : 0.6 pounds ModelName : HB.9982 ModelNumber : HB.9982 NumberOfBoxes : 1 NumberOfItems : 1 OperationMode : Hydraulic PartNumber : HB.9982 ProductDescription : The hydraulic drive draw stud is made of chromium steel with heat treatment, ensuring high hardness, wear-resistant, corrosion-resistant and rust-proof. A unique punch profile helps split slug for easier removal, increasing work efficiency. Use the die together during operation. First, open an 11.5mm guide hole, screw in the draw stud in the hole opener, put down the lower die, iron plate, and upper die in sequence, and finally press and open the hole. It can only be used on metal plates below 4mm; please do not use it without load to avoid high pressure oil pipes bursting due to excessive pressure. Draw stud is designed for use with the hydraulic knockout punches with the same thread configuration. The punches hole-making kit is perfect for drilling holes in a wide range of materials, such as stainless steel, iron, aluminum, etc.