Pro Parts Place is a brand that specializes in providing replacement parts for lawn and agricultural equipment Our brand emphasizes providing a one-stop solution for finding the parts needed to keep equipment running efficiently. They aim to be a reliable resource for finding all the necessary parts, streamlining the process of maintaining and repairing equipment. XHT BLADES Extreme Hardness Toughness Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the HXT blade are sharper and longer lasting cutting edges. More resistance to bending. Tighter tolerances in the aftermarket vs. OEM. XHT blades also offer greater impact toughness. By the way they are made in the USA! Hands down the ABSOLUTE best aftermarket replacement blade on the market! Don't waste your money on the cheapest set you can find on eBay unless you want a cheap blade that will not perform! This sale is for 3 replacement XHT blades. ******* JOHN DEERE M128485 M131958 M133381 M163983 M168223 TCU15881 (3) Needed for 60" CUT DECKS THESE ARE THE HEAVY DUTY ACTUAL .313" THICK BLADES NOT THE THINNER 1/4". Each blade weighs 4 lbs 5 ounces. Center Hole: 7/8" Width: 2-1/2" Thickness: .313" Length: 21" Medium Lift John Deere (UNDEFINED): SEVERAL (60") John Deere FRONT MOUNT MOWER: F687 (60") John Deere RIDING MOWER: F735 (60") John Deere RIDING MOWER: 1550 (60") John Deere RIDING MOWER: 1570 (60") John Deere RIDING MOWER: 1575 (60") John Deere RIDING MOWER: 1580 (60") John Deere RIDING MOWER: 1585 (60") John Deere RIDING MOWER: 60 (60") John Deere RIDING MOWER: 997 (60") John Deere ZERO-TURN: Z520A Z-TRAK (60") John Deere ZERO-TURN: Z720A Z-TRAK (60") John Deere ZERO-TURN: Z920M Z-TRAK (60") John Deere ZERO-TURN: Z925M EFI Z-TRAK (60") John Deere ZERO-TURN: Z925M EFI FLEX FUEL (60") John Deere ZERO-TURN: Z930M EFI Z-TRAK (60") John Deere ZERO-TURN: Z930M Z-TRAK (60") John Deere ZERO-TURN: Z930R Z-TRAK (60") John Deere ZERO-TURN: Z950A Z-TRAK (60") John Deere ZERO-TURN: Z960A Z-TRAK (60") John Deere ZERO-TURN: Z997R Z-TRAK (60") John Deere ZERO-TURN: 737 Z-TRAK (60") John Deere ZERO-TURN: 757 Z-TRAK (60") John Deere ZERO-TURN: 777 Z-TRAK (60") John Deere ZERO-TURN: 797 Z-TRAK (60")