The ear grinds lightly across the entire length of the blade to improve the penetration. [Uses] Horizontal drawing of wood. Features: Can be used with the handle of the Zetsaw series. Impact hardening is applied to the blade for superior toughness and durability. The replacement blade is a hook type, so it is easy and fast. [Specifications] Saw plate thickness: 0.03 inch (0.7 mm). Pitch: 0.08 in (2.15 mm) Cutting width: 0.04 inch (1 mm) Blade length: 11.8 inches (300 mm) [Material] Blade: SK5 Product Size (W x H x D): 2.6 x 13.0 x 0.04 inches (66 x 331 x 1 mm); Weight: 3.5 oz (101 g); Product Code: 4963041150645; JAN Code: 496304115064