Features  

length: 130 mm 
1# diameter 0.7mm pitch 0.210mm
2# diameter 0.85mm pitch 0.235mm
3# diameter 0.9mm pitch 0.255mm
4# diameter 0.95mm pitch 0.270mm
5# diameter 1.05mm pitch 0.290mm
6# diameter 1.13mm pitch 0.315mm
7# diameter 1.28mm pitch 0.345mm
8# diameter 1.35mm pitch 0.370mm.
 
Uses: Used to cut all kinds of soft and hard wood, wood, carbon steel, copper, aluminum and other metals, but also saw plastic, acrylic board, etc., just different speed.

You can buy the Hacksaw and Blades separately or as a Set
 
Note: Saw blade should be tight, otherwise it is easy to break.