The Bopurtotly 981-0490 781-0490 High-Speed Steel Forging Manufacturing Blade Product Details 981-0490 781-0490 High-speed steel forging manufacturing Blade Chipper Knife For MTD, Troy-Bilt, Craftsman, Huskee, Yard Machines Chipper Shredder ? 2 PACK? The blade is made of 65 Mn steel, which is more durable than ordinary steel. Part numbers: 981-0490 781-0490 Fits?240-645-138, 240-645-205, 240-645-372, 241-645-027, 241-645-034, 241-645-045, 241-645-054, 241-645-058, 241-645-062, 241-645-084, 241-645-088, 241-645-098, 241-645-105, 241-645-111, 241-645-129, 241-645-134, 241-645-136, 241-645-192, 241-645-331, 241-645-701; Troy-Bilt 24A-060E711, 24A-071J766, 24A-060E766, 24A-070J766, 24B-060E711, 24B-060E766, 24B-070J766, 24C-060F063, CSV065, CSV070, CSV206 Includes: Two blades,4 sets of screw. Because it is a metal product, it may rust, but it will not affect the use. The material is great. Made of forged high-speed steel, strong and durable, the knife edge is not easy to collapse, the blade is not easy to break, the use of 65 Mn steel, installation and use more convenient, value for money, worth buying. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.