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 extra-long 13" length is ideal for deep drilling applications. Nickel-plated finish provides smooth operation, while the slow spiral flute allows fast debris removal.

• 5/16" diameter x 13" 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
• Extra-long for deep drilling applications