DuraDrive 2-1/2 in. x 9 in. Hand Guard Carbon Steel Floor Chisel Blade. Floor chisels or Electrician's Bolster are manufactured as a single piece forging from high quality carbon steel. These are much thinner blade construction than a brick bolster. Used for cutting tongued joints & lifting floor boards.
- The cutting edge is hardened to 52-58 HRC with the striking end maintainend under 42 HRC
- The complete bolster is powder coated and the cutting edge is accurately ground
- Hand guards are designed to protect the user's hands from misplaced hammer blows.