XHT2 REPL HD Blades Compatible with John Deere M139976-LX255 LX266 LX277 LX279 42"

Works great

Great product last longer than other blades do Thanks

Very good blades and excellent quality

I have not seen 'the magic formula" but XHT claims these blades are hardened to stay sharp longer. They do last much longer and still, thankfully, a bench grinder could still sharpen the edge. XHT also claims they won't bend as easily. So far so good on that one. I have, in the past bent several original John Deere blades. So far the XHTs have hit a few bad things [EG stumps]...no bend or twist yet!

Blades work great thank you!!!

if you are not buying OEM blades these are a great alternative.

No Coplaints, fit well and cut nice

good quality set of blades