- Chemifoam Polyurethane Foam B3 is a mono-component polyurethane foam-based assembly sealant that cures in contact with ambient humidity. The cured product is rigid and has a thin structure of partially closed cells.
- The 8% cobalt content maintains a sharper cutting edge and delivers a 4X longer life versus DeWalt Black Oxide bits. - The optimised tip and flute geometry delivers 2X the penetration speed, versus DeWalt Black Oxide bits, removes material faster and reduces heat build up. - The stronger central core delivers 2X the resistance to breakage versus DeWalt Black Oxide drill bits.