Engineered for precision, these spline hammer bits drill perfectly concentric holes through granite, stone, brick, and concrete. The 4-cutter tungsten carbide reinforced head is copper-silver brazed to withstand extreme heat and reduce vibration for smoother, more efficient drilling.

• Drills perfectly concentric holes through granite, stone, brick, block, and concrete
• 4-cutter tungsten carbide reinforced head is copper-silver brazed for extreme heat resistance
• Reduces vibration for smoother and more efficient drilling performance
• Chrome vanadium steel body ensures maximum strength and straightness
• Compatible with all spline hammer drills and meets ANSI specifications
• Specifications: 1-1/2 in. diameter, 22-1/2 in. overall length, 17-1/2 in. usable length