is our cost-effective means of punching round, square, and rectangular holes into metal tubing. This type of hole punching has two styles, Double Dimple & Single Dimple. The double-dimple version uses two individual punches that travel towards each other during the press cycle. Since this style punches without an internal support (mandrel), the punches create a dimple. The single-dimple version uses a single punch that travels from one side and continues through the tube. The tube is supported on the backside, so there is only a dimple on one side of the tube. The tooling used with this type of hole punching is very inexpensive when compared to mandrel-style hole punching. Holes may be punched one at a time or multiple holes in multiple locations and planes.
MANDREL STYLE HOLE PUNCHING
is our cost-effective way to punch round, square, and rectangular holes in metal tubing. This method of punching uses an internal support so the outside diameter integrity of the tube is not altered. Holes may be punched one at a time or multiple holes in a row. Mandrel style hole punching is required when tubes need to telescope or fit inside one another. The tooling required for mandrel hole punching is more expensive than dimple hole punching, but is more accurate and holds tighter tolerances.
