mill saw file

fish back file

barrette file

tinkers file

sunk key

flat saddle key

hollow saddle key

circular taper key

ball-pein hammer

cross-pein hammer

sledge hammer

power hammer

Grain size

Grade

Structure

Bond

0.15% to 0.3%

0.3% to 0.5%

0.7% to 0.9%

0.9% to 1.1%