Blade is not the same blade! This here is the "Economy" product of Makita. On their website, there is an overview of the disk to be used for that material. That this disc does not have the life of a 100 disc, should be clear. In addition, RTFM (read the manual). A Makita's hard enough to exert the pressure to cut himself. When the user presses even after or even tilted, the disc can not last. Conclusion: they are used as intended, it is worth their money.
