Hacksaw
A frame saw or sash saw is a type of saw which consists of a relatively narrow and flexible blade held under tension within a (generally wooden) rectangular frame (also called a sash or gate). They are used for cutting wood or stone. The blade is held perpendicular to the plane of the frame, so that the material being cut passes through the center of the frame. Frame saws for use with wood are rip saws operated as a hand saw or powered in a sawmill. Frame saws used for cutting stone were powered saws in stone mills.
A Hacksaw has a thin, flexible blade - held under tension by a screw mechanism. A tenon saw has a broad, rigid blade.
To perform a bow saw blade replacement, first loosen the tension on the saw blade by turning the tensioning knob or screw. Remove the old blade by sliding it out of the saw frame. Insert the new blade into the frame, making sure the teeth are facing forward. Tighten the tension on the blade by turning the tensioning knob or screw until the blade is securely in place. Test the tension by plucking the blade like a guitar string it should produce a clear, high-pitched sound.
to cut very easily round objects and material
Hack saw, coping saw.
There really isn't just a 'tension saw', its more a group name. my closest answer would be either a hacksaw for cutting metal or plastic and a coping saw which is for cutting wood.
The handle unscrews which releases the tension on the blade. There is a pin through each end of the blade that slips into a notch in each end of the handle.
To hold the blade and tension it..
There is no such thing as a maximum tension. That depends on the ability of the saw to apply tension-an 18 inch industrial saw can apply more tension to a blade than a 6 inch hobby saw-and the ability of the blade to withstand tension before snapping. The blade's ability to accept tension depends on its size (width and thickness, not length) and the material used to make the blade. A 2 inch blade withstands more tension than a one inch blade of equal thickness. Some steels and carbide are usually brittle (accept static tension) while others are more flexible and better at handling tension while moving.
A 'coping saw' is a type of small frame saw with a U shaped steel frame holding a very thin blade. This blade can be rotated in the holder so the saw is capable of making very intricate cuts. -It is very similar to a fret saw.
Straight saw, tenon saw, back saw, coping saw, cross-cut saw, hack saw, laminate saw, frame saw and many others.
Sword. Also dagger and stilletto.