Marcrist ½"BSP (F) CCU850X Diamond Universal Core Bit For DDM2 Drilling Machine (65mm x 165mm)

• The most universal core ever
• Absolutely world breaking technology, extremely fast, long life
• Drills 75% - 80% of all building materials - dry
• Even drills granite and lightly reinforced concrete - dry
• Works dust free with minimal vibrations
• Patented segment design
• 8mm diamond impregnation
• Dynamically balanced
• + /-0.3mm ultra precise
• Tensile steel core
• Guaranteed no segment loss