Modular Drills Application Data • Victory™ TOP DRILL M1™ Cautions Coolant Application Workpiece 1) Internal coolant is recommended. Recommendation Shape Flat Face Recommended 2) In case of external coolant, cutting depth must be 3 x D or less. Stacked Plates Recommended 3) Dry cutting is not recommended. Limited applicability in cast iron materials, MQL strongly recommended. Inclined Surface >3° Not Recommended Usage Precautions Core deviation Half Cylindrical Not Recommended 1) For Turning Machines Hole Expansion Not Recommended Max. 0,02mm Set deviation amount under 0,02mm between workpiece and drill. Concave Surface Not Recommended 2) For Machining Centres Pipe Material Not Recommended Max. 0,02mm Do not use any arbour with a damaged attachment surface. Centre of arbour deviation must be within 0,02mm. Cored Hole Not Recommended U22 widia.com