Fixed blade utility knife by Marshalltown. Fixed blade knives are useful for removing caulk from joints as the blade will not retract when you use force. I keep one of these bad boys in my caulking tool bag.
- Magnet holds blade in place during replacement
 
- Large knob allows for easy opening
 
- Zinc alloy body
 
- Includes 3 blades stored in handle
 
- Replacement blades sold seperately