Anyone here know woodworking?

saw this...new...there is a 14" too, both 15 tpi. Do I need a finer cut?
Thomas Flinn Lynx 12" Tenon Saw, 15 TPI, Filed for Cross Cutting, Beech Handle | eBay

Found these chisels and I have a 15% Zoro discount.
Stanley 4 Piece Sweetheart® Socket Chisel Set with Pouch 16-791 | Zoro.com
Stanley Bailey, Chisel Set, 1/4 to 1-1/4 In, 5 Pc 16-401 | Zoro.com
Stanley Wood Chisel Set (3-Piece)-STHT16727 - The Home Depot