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						- NC-spotting drills 120°, code VN50115, diameter 20 mm
 
					
				
			
		 
	 
	
		  
	
		
		
			
	
		   
			VN50115.2000            
			High-speed steel HSS Co5
			
			             
			
		   
	  
 
			
			
				
				
	
	
		
		
			
				
			
		
	
	        
 
				
				
				
				
				            
				
				
				
				
	
  
				
	
		
			Cutting conditions
			
			
	
		
			 
			Material | 
			 
			Strength | 
			 
			Vc | 
			fz(mm/r) 
			Ø1 | 
			 
			Ø2 | 
			 
			Ø3,15 | 
			 
			Ø4 | 
			 
			Ø5 | 
			 
			Ø6,3 | 
			 
			Ø8 | 
			 
			Ø10 | 
			 
			Ø12,5 | 
		
	
	
		
			| P.1 | Free-cutting steels, general construction steels | 
			≤ 600 N/mm² | 
			40 | 
			0,016 | 
			0,05 | 
			0,08 | 
			0,1 | 
			0,1 | 
			0,125 | 
			0,16 | 
			0,2 | 
			0,2 | 
		
		
			| P.2 | General construction steels, steel castings | 
			≤ 850 N/mm² | 
			40 | 
			0,016 | 
			0,05 | 
			0,08 | 
			0,1 | 
			0,1 | 
			0,125 | 
			0,16 | 
			0,2 | 
			0,2 | 
		
		
			| P.3 | Tool steels low alloyed | 
			≤ 1100 N/mm² | 
			35 | 
			0,016 | 
			0,05 | 
			0,08 | 
			0,1 | 
			0,1 | 
			0,125 | 
			0,16 | 
			0,2 | 
			0,2 | 
		
		
			| P.4 | Heat treatable steels | 
			≤ 900 N/mm2 | 
			22 | 
			0,014 | 
			0,04 | 
			0,063 | 
			0,08 | 
			0,08 | 
			0,1 | 
			0,125 | 
			0,16 | 
			0,16 | 
		
		
			| M.1 | Corrosion- and acid-proof steels | 
			≤ 750 N/mm² | 
			12 | 
			0,012 | 
			0,032 | 
			0,05 | 
			0,063 | 
			0,063 | 
			0,08 | 
			0,1 | 
			0,125 | 
			0,125 | 
		
		
			| M.2 | Corrosion- and acid-proof steels | 
			750 - 850 N/mm² | 
			10 | 
			0,012 | 
			0,032 | 
			0,05 | 
			0,063 | 
			0,063 | 
			0,08 | 
			0,1 | 
			0,125 | 
			0,125 | 
		
		
			| M.3 | Corrosion- and acid-proof steels | 
			> 850 N/mm² | 
			10 | 
			0,012 | 
			0,032 | 
			0,05 | 
			0,063 | 
			0,063 | 
			0,08 | 
			0,1 | 
			0,125 | 
			0,125 | 
		
		
			| K.1 | Cast iron (≤ 240 HB) | 
			≤ 820 N/mm² | 
			33 | 
			0,018 | 
			0,063 | 
			0,1 | 
			0,125 | 
			0,125 | 
			0,16 | 
			0,2 | 
			0,25 | 
			0,25 | 
		
		
			| K.2 | Cast iron (> 240 HB) | 
			> 800 N/mm² | 
			30 | 
			0,018 | 
			0,063 | 
			0,1 | 
			0,125 | 
			0,125 | 
			0,16 | 
			0,2 | 
			0,25 | 
			0,25 | 
		
		
			| S.1 | Chrome-nickel alloysi | 
			≤ 1500 N/mm² | 
			6 | 
			0,006 | 
			0,02 | 
			0,032 | 
			0,04 | 
			0,04 | 
			0,05 | 
			0,063 | 
			0,08 | 
			0,08 | 
		
	
Calculations of cutting conditions
		    
	   
	
		Product attributes
		  
			
				
				
					
					Universal usage. Suitable for materials up to strength 900 MPa.
				 
			  
			
				
				
					
					Conical lip relief, DIN 1412 form N.
				 
			  
			
				
				
					
						
						Right helix
						
					 
					
				 
			  
			            
		 
		  
			
				
				
			  
			
				
				
					
						
						Point angle 120°
						
					 
					
				 
			  
			
				
				
					
					Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
				 
			  
			
		 
	 
  
			   
		
	  
	 
	
	
	
	
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