• Carbide tip designed for rotary percussion action
• High-grade alloy steel body, heat treated for exceptional strength
• Unique double flute design removes dust quickly
• Patented technology tip
• 5 Premium-grade carbide inserts
• Faster, smoother drilling and longer lasting
• Precise hole location, easy-start center point
• Heat-treated, shot-peened superior steel
• Ultra-efficient dust removal flute design
• Available up to 60" drilling depth
• 38" bits have 12" flute length and undercut body