Sandvik Coromant Co. Solid Carbid Drills CoroDrill 861

CoroDrill® 861 provides the high stability essential for drilling deep holes, with high speed and efficiency. Benefits Accurate deep holes to depths up to 30× drill diameter, without pecking High speeds and feeds allow greater productivity to reduce cost per hole Fast and efficient chip evacuation reduces machine downtime and increases tool life Features ACM (Advanced Chip Management) flute geometry encourages small and manageable chips Specially designed point geometry helps to reduce thrust forces Consistent edge preparation protects the cutting edge from premature chipping and flaking Double offset margin patented geometry offers greater stability to the drilling operation Internal coolant holes deliver coolant directly to the tip of the drill even at deep drilling depths Application Achievable hole tolerance H8−H9 Clamp with high precision chucks only Drill lengths: 12−30 × drill diameter A wide range of workpiece materials Conventional drilling, cross holes, angled faces Automotive: crankshafts, engine blocks, cylinder heads