Dasco 0405-0 Cold Chisel head provides 3 times bigger target than similar Chisels with this same stock size. Offering liberty from spalling and mushrooming of the head. The cutting edge is 1/2 inch with a length of 6-3/8 inches The enamel coating provides a long-lasting finish with an attractive look. Heat-treated domestic steel delivers the correct hardness.s. No. 0405-0 Cold Chisel Blade Width 1/2 inch and Chisel Length is 6-3/8 inches The chisel material is domestic steel with Enamel Finish. The carded package quantity is 1 | The Jenks Industrial SKU is 303415