This tool is the same as the regular 13 inch crevice tool, except it has an extra angle to keep your knuckles from hitting the rocks.
It has a wide blade 3/8", to allow larger amounts of material to be removed.
This tool made from 1/4" cold rolled steel. The tip has been hand forged and heat treated, Heat treating the tip, makes it hard so it will last a long time. Powered coated bright red so they will look good and last for years.