The Kobalt 20-in mower blade is perfect for most lawn cutting needs. It fits either Kobalt 2x24V lawn mowers (item numbers 1774923 or 1930593) or 40V lawn mowers (item # 3809909, 3809896, 4132845 or 4132846). Hardened steel blade Rust-resistant finish Works with the 2x24V Kobalt mower (Item #1774923 or 1930593) and 40V Kobalt mower (item # 3809909, 3809896, 4132845 or 4132846). Blade Width (Inches): 1.97 Center Hole Diameter(s): 0.718-in Fits Deck Size: 20 Mower Blade Thickness (Inches): 0.6 Application: Walk-behind mowers Blade Type: Multipurpose Center Hole Design: Round Material: Steel: 100 % Package Quantity: 1 Warranty: 90-day Brand/Model Compatibility: Kobalt Replaces OEM Part Number: 0 CA Residents: Prop 65 Warning(s): Yes UNSPSC: 27112000