Heat Insulation Material Drill Bit (Groove Cutting Bit For Heat Insulation Materials)

[Features]
· Turning drill bit that lets you easily cut grooves for PF pipes (up to 22) in heat insulation materials (styrofoam, urethane foam, etc.).
· Simply attach it on your existing power drill. There is no specific cutting direction, meaning that you can cut out material along a straight line or curved line as desired.