DeWalt SDS Max Drill Bits - 340/540mm - DEWALT DT9400-QZ, This 12 x 340mm drill bit from DeWalt has been manufactured to a very high standard courtesy of the 4 cutter X-head design for improved user comfort, reduced vibration and improved hole quality.
Whether you are a professional tradesman or DIY enthusiast, the 4-flute spiral increases drilling speed and debris removal with a heavy-duty shank for maximum durability.
DEWALT DT9400-QZ SDS Max Drill Bit 12 x 340mm