Snap Lock Punch; Capacity 0.35" Aluminum, 0.23" Copper, 0.18" Stainless Steel, 0.28" Galvanized Steel, 0.24" Mild Steel; Size 8" Length; Inclusions/Features Heavy Forged Cutting Jaw, Rust Resistant, One-Hand Operation Latch; Jaw Material Forged Alloy Steel; Shell Material Carbon Steel; Throat Size 3/8" Depth; Weight 16 Oz; Warranty Lifetime Limited