The Stanley FatMax® Tenon Back saws have the following features:
Reinforced back for extra rigidity makes a straighter cut;
Handle screwed to blade for extra strength;
Finger rest - ergonomic design, useful for extra control when starting a cut;
Triple edged teeth cut on both push and pull strokes for ease of cutting;
Induction hardened teeth;
45° and 90° angle quick reference points;
Bi-material handle for improved grip and comfort.

The Stanley 2-17-199 FatMax® Tenon / Back saw has triple edged induction hardened teeth with a durable bi-material handle for grip. It cuts on both the push & pull stroke meaning it cuts even quicker, the handle has built in 45° and 90° angle quick reference points and has the following specifications:

Length 300mm (12in)
Teeth 11tpi