The Irwin Rotary Masonry Drill Bit features a tungsten carbide tip with diamond-ground cutting angles for fast, efficient drilling in concrete, brick, block, tile, slate, and plaster. The nickel-plated finish provides smooth operation, while the slow spiral flute design allows fast, easy removal of debris. Bits 7/16" and larger have reduced shanks.

• 7/16" diameter x 6" overall length
• Tungsten carbide tip - brazed for durability
• Diamond-ground tip for aggressive cutting angles
• Slow spiral flute for fast debris removal
• Nickel-plated for smooth operation
• Reduced shank for standard drill chucks
• For concrete, brick, block, tile, and plaster