[look 171]

Originally Posted by MBAtarga

https://www.sunbeltrentals.com/equipment/detail/995/0040070/toe-kick-saw/

Toe Kick saw rental - in my zip - $15 for 4 hrs, $21 for a day. And be done with it!

This puppy is what you really need, but for that cut use a sawzall. I an one of whose wierd dude that like to mount the blade upside down to get into tight places. This is one of those situation to do so for a lower angle of attack on the OSB.