These Irwin 10" Tinner Snips have a flat blade that cuts straight & wide curves. Precision-ground edges on the blades ensure a tight grip on each cut for superior cutting quality. Hot drop-forged steel blades provide maximum strength &long life. Durable spring washer holds blades tightly against each other when cutting. Handles are encased in Plastisol for better comfort and reduced hand fatigue during cutting. The grips on the tin snips provide superior comfort, resists twisting.