Sheet Metal Fabrication Shrinker Stretcher 16 18 Gauge Gage Mild Steel Aluminum Shrinker /Stretcher Sheet Metal Fabrication Shrink/stretch up to sizes: 18 (1.2mm) gauge mild steel & 16 (1.5mm) gauge aluminum Handle length: 17'' long; Jaw clearance: 1/8"; Throat depth: 1" Hardened Jaws ensure machines long life and operation ; Unit approx. weight: 12 lbs Quantity: 1 ; Unit overall dimension (without handle): 1-3/4''L x 5-1/2''W x 5-1/2''H ;