These fall into 2 main categories, Carpenters tools for dead or cut wood and Horticultural and Forestry saws for living green wood.
Carpenters saws used to be very expensive and much coveted tools that a craftsman sharpened and kept for years. Due to advances in technology carpenters saws can be cheaply produced and the hard point teeth cannot be sharpened thus rendering the tool disposable once the teeth become blunt. Companies such as Bahco (formally known as Sandvik and renown for quality saw blades) and Stanley now make saw systems where the blades are disposable but fit into a special handle that is kept and can be used for a whole range of blades. Faithfull saws tend to be budget priced and often used as site saws and thrown away when the job finishes.
Tenon saws are smaller with a fine cut but not so popular now as furniture tends to be flat-packed and not craftsmen made. Keyhole saws, Jabsaws, compass saws , flush cut saws, coping saws and fret saws are all specialist saws used for more intricate woodwork applications.
Forestry and Horticultural Saws
Bowsaws are used to cut large branches from trees and shrubs whilst the long thin pruning saw is used to access awkward places and smaller branches. Bahco bowsaws are used by professional foresters and horticulturalists due to the exceptional blade quality whilst brands like Faithfull are popular with the more sporadic use of the hobby gardener.
Hacksaws for Metalworking
The hacksaw is an essential tool for any workshop and like the woodsaw comes in many shapes and sizes. The most common engineer's hacksaw has been produced in the same form by companies like Irwin and Stanley for decades. Fancier versions with easier blade tensioning and comfy handles have evolved for the serious user and improvements in the blades now make them less brittle and able to operate more effectively under extremely high tension.
The junior hacksaw is a handy small version for more intricate work as is the Stanley mini-saw where the blade extends forward from the frame to give access to the most restricted areas.
Specialist Saws for Plasterboard, Block Work, Plastic and PVC.
Due to the nature of certain materials it is necessary to use saws with carbide tipped teeth or unusual angles that remove material faster or without causing so much heat and friction. Other specialist saws are developed for specific tasks such as the Stanley floorboard saw that has teeth on the curved front edge to cut into the floor before using the conventional flat saw edge to cut along the floor.