The piercing saw or jewellers saw is a small and fretsaw styled saw that has fine blades. Capable of cutting wood and plastic they are mainly used on metal. The frame adjusts to extend the life of broken blades.

The blade is clamped into the saw frame with the teeth facing towards the handle so that the saw cuts when it is pulled, not like a conventional saw that cuts when it is pushed.  It's used by jewellers, also has uses in model making and any metalworking that requires fine detail as well. 

Use Jewellers saw blades

Cutting Depth (Throat size) of 75mm (3") - comes with one 38 TPI saw blade.