I use the 10 TPI and have found it to be a good all around metal blade

I just did a pack of 100 each of the 6" and 9" on May 13th >> Good seller >> FAST shipping
He does sell smaller quantities
Milwaukee 48 01 7712 6" 10 TPI The Torch Sawzall Blade 100 PK | eBay
and
Milwaukee 48 01 7713 9" 10 TPI The Torch Sawzall Blade 100 PK | eBay

Sellers complete list sawzall blades he has for sale at this time
blade sawzall from greatlakespowertools | eBay