Bench grinder

Portable grinder

Pedestal grinder

Surface grinder

Web chisel

Flat chisel

Cross cut chisel

Diamond point chisel

Barrete file

Tinker s file

Millsaw file

Riffler file

Face

Pein

Cheek

Eye hole

Cutting edge cannot penetrate, chisel will slip

Cutting edge digs in, cut will be deeper

Cutting edge will break

Cutting edge of chisel move freely on straight line