REPLACEMENT XHT BLADES Extreme Hardness Toughness MADE IN THE USA! Don't be fooled by other cheap imported blades you see on eBay! Buy from home! The XHT blades are made with MARBAIN which is what makes them THE BEST BLADE ON THE MARKET! Increased hardness (between 48-52 on the Rockwell Hardness Scale), without brittleness Greater yield strengthÂthe strongest mower blades on the market Better impact toughness (ANSI-S483 compliant) Increased resistance to bending Higher wear resistance Reduced weight Faster start/stop Less wear on PTO clutch break Lower fuel consumption Last longer and need to be sharpened less frequently Our patented MARBAIN material is a durable, cost-effective alternative to abrasion resistant steel and other manufacturing materials This sale is for 2 replacement XHT blades. Replaces the following OEM part numbers: JOHN DEERE M154062 Blade specs Center hole: 7 LOBE Width: 2-1/2" Length: 21-3/8" HIGH LIFT FITS THE FOLLOWING 42" DECKS D100 D105 D110 D120 D125 D130 LA100 LA105 LA110 LA115 LA120 LA125 LA135 LT150 LT160 LT170 LT180 SST16 S240 X110 X120 X125 X145 X300 X304 X310 X360 Z225 Z235 102 115 125 135 *DISCLAIMER- WE LIST BLADE PART NUMBERS, MODEL NUMBERS AND DIMENSIONS FOR REFERENCES BUT IT IS UP TO YOU TO BUY THE RIGHT BLADES. If you order them and they don't fit it is not our fault! Not trying to be ugly or rude but just fair to both parties. KNOW WHAT YOU NEED BEFORE YOU BUY! We always accept returns but the shipping to and from will be your responsibility unless we make the error.