material:high carbon steel
color:black
Size: length :8cm diameter: 1cm replacement head length :2.8-3cm width: 1.2-1.5 cm
the error is about 0.39inch
package include: 1set punch tool
There are 2-3% difference according to manual measurement.please check the measurement chart carefully before you buy the item.
1 cm=0.39 inch,1 inch=2.54 cm